A geode is a special kind of rock that is made from some kind of geological deposition, either sedimentary or volcanic. Welcome to one of the largest crystal collections in the world where we’ll help you find a stone for all your healing, metaphysical, meditation and decoration needs. Try to cut the stone with a knife -- if a metallic line is left, then you can polish it. Mix up a small amount of powdered polish and apply it to the 3000-grit sandpaper. (The above link is to a helpful and reputable dealer, and where I purchased mine.) You guessed it: brown. At the table we'll sit and draw shapes on the rock on how we might like to cut it. for a 10-lb. Geodes are beautiful, especially when polished to a high gloss, but learning how to polish a geode like this can be a challenge at first. Whatever stage of rock or gem cutting you start with, stone polishing is the final stage that can make or break all your work. Have fun. I better run to the art store to get some paint now! Copyright 2021 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. It’s a wonderful family-friendly activity where everyone learns something—like a science lesson at home. Add coarse tumbler grit. The best agate sizes for DRINK COASTERS are #3-#4-#5 #3 is a small coaster - #4 is our standard size coaster - #5 is a larger coaster / easy to make your own Gilded Agate Coasters. A raw agate must be cut into slices and sanded on various grits of sandpaper before it is ready for polishing, a final step that will transform it into a beautiful piece of natural art. Then place the rough and media in the barrel with two tablespoons of TXP polish for each pound of material in the barrel. A geode is a special kind of rock that is made from some kind of geological deposition, either sedimentary or volcanic. However, if the rocks you have found are of a softer variety, you may get better results polishing them by hand. After enough hammering on the wedges, the stone will spli From shop RockSupplyStore. Proceed for 15 minutes. . They should be of similar hardness. In a rotary tumbler we add just enough water to almost cover the rocks. A Dremel is a type of rotary tool that has many applications around the home and in the workshop. Take the newly polished stones out of the tumbler. You can buff and polish stones by hand-using a Dremel tool. Don't be in a hurry. A geode is a rock that contains crystals in a hollow cavity. Just create the fence base and fill it in with rocks of all shapes and sizes. Wash the rock again in clear water and buff it dry with a clean, soft, dry cloth. barrel. Then add enough water to almost cover the rocks. Sand the agate slice on the wheel until it reaches a brilliant luster. Once the slices, or slabs are cut, they come up to the kitchen table. Refill the tumbler with the stones and enough water to cover them. Don’t pour leftover slurry or grit down any household drains because it will clog as it hardens. We, too, look for these hard stones to bring home and polish in the rock tumbler. I offer discounts on shipping when you purchase more than one store item. Nov 3, 2016 - How To Sand And Polish A Slab Or Geode Half .... Quickly. Apply a small amount of polish to a leather cloth and buff your … Wash the rock again in clear water and buff it dry with a clean, soft, dry cloth. Lava Rock Lepidolite Malachite Mookaite ... Agate Slice - Extra Grade Open Druzy Center - Pick your Colors (3BROWNSHELF) from $2.50 Agate Coasters 24k Gold or Silver Electroplated Edges - Coaster Size (OB4) from $16.50 barrel), water and plastic pellets or ceramic cylinders (if you have them). Step 1 Wet and inspect the rough gemstone under magnification with a bright light source. barrel or 10 tbsp. When you are dipping the rock into the water, the part that goes in first will get the most paint so that will most likely be the top of rock… Eligible orders get 10% off Spend $10.00 to get 10% off your order Favorite Add to Large Laguna Agate Slice JanuaryDesignsUSA $ 24.95. Hemera Technologies/AbleStock.com/Getty Images, Rock Tumbling Supplies: Polishing Rocks by Hand, 50, 150, 300, 500, 800, 1000, 2500 and 3000 grit sandpaper. For smaller rocks, a rock hammer/pick or household hammer will work fine. Should you be lucky enough to have a lapidary diamond saw, you can use it to cut the geode into two. of grit or polish for a 1 1/2-lb. A video about how to polish rocks by hand, no tools needed. // Leaf Group Lifestyle. STEP 3 PRE-POLISH – After getting off all the medium grit from your stones, refill the clean barrel with rocks, 1 tablespoon per lb. Load 300-grit sandpaper onto the sanding wheel and rub the agate back and forth, removing scratches from the 150-grit paper. We’ve got this rock polishing process down and the kids look forward to it. Hello SErs. Saved by Megan Wilde. 1 Cut the stump flush to the ground, if desired, or leave it in place if you want to create a stationary table. 2) it contains bits of bone, shell, wood or leaves, sometimes more! Some rocks are not tumlbed but straight-on polished, agate faces and slices get the vast majority of this kind of treatment to give them a neat and clean look, as well as bring out their strata. Seal the tumbler, turn it on and allow it to run for seven days. 100g POLISH (zinc oxide). 5 out of 5 stars (109) 109 reviews $ 12.00. Nov 3, 2016 - How To Sand And Polish A Slab Or Geode Half .... Quickly .. Add 220 grit, seal the tumbler, turn it on and allow it to run for six or seven more days. And please, tell me if it cannot be done. Take the newly polished stones out of the tumbler. Although this process might sound like it requires exertion, a rock tumbler usually does most of the work. If you'd like to take a … Many stones from the beach or the woods will polish. Take a rock and then dip it into the water where the nail polish is. Think gemstones are just the best, but you’re not sure how to make them correctly? A general rule is to use 3 tbsp. or other times I know right away exactly how I want to cut it. Usually tumblers come with instructions. 3) It has dung beetle tracks or burrows as they worked through it. 200g OF COURSE GRIT (silicon carbide). This device puts the stones through several weeks of grinding and polishing to smooth the stone and unlock its colors. Discard any stones that have cracks or jutting, irregular shapes. With care, the face of the wheel will do … Beautiful Polished Agate Geode Slices Natural Rock Formations, 2.5 to 3.5" Diameter, Mostly Ovals JanuaryDesignsUSA $ 3.45. Mix up a small amount of powdered polish and apply it to the 3000-grit sandpaper. Once my slices were all painted and dry I placed them on top of the plywood to figure out where I wanted each piece to go. After cabochon cutting or gem cutting, stone polishing and buffing are final finishing steps in the lapidary process. Put a small amount of polishing powder on a dampened piece of leather or velvet, and rub the rock in tight little circles. Gave some to the kids teachers a while back for paperweight gifts. As promised, here is part twenty in the post series dedicated to taking a step-by-step look at how to get your finished manuscript from your computer and on sale on Amazon in both ebook and paperback. There is more than one use for a cut and polished stone. Make sure to wear gloves because it does get on your hands. The one difference between the rock and the petrified wood is the detail of the wood. Browse the top polish rock artists to find new music. There are 605 polish rock slice for sale on Etsy, and they cost $15.50 on average. The finer the grit the better the shine. Once sliced, agates reveal elaborate bands of color formed over time. Odd shapes have never been a problem, but now i have these flat slices about 2-3mm thick and 8-12mm diameter (they're going to be disc beads if I can ever get them polished, no holes yet) I use a mini-sonic vibratory tumbler for this. For the best results, use a rock tumbler. At this point, you may choose to either continue polishing with the cloth, or you may coat the stones and gems with mineral oil or commercial rock polish. Alternate hammer hits on the wedges as they start to tighten up. This fabulous rock fence would bring charm to any landscape. There is also more than one way to perform the task. Polish Step: Make sure that your barrel and rough/media mix have been cleaned thoroughly of all grit and rock mud. The Magic of Stone Cutting The idea of slicing open a rock to see the beauty and The Magic of Stone Cutting The idea of slicing open a rock to see the beauty and Sometimes the slabs may sit for a month while I decide, (don't worry, we eat dinner in the dining room!) How to Polish Agates (and other rocks) What is an agate? Grind the rock to the desired rough shape using a grinder. Nov 3, 2016 - How To Sand And Polish A Slab Or Geode Half .... Quickly. Thanks. See more ideas about lapidary, rock, slice. Back in the lab (read garage or basement!) The slices are plunged into the gel at every stage and remain there sealed until the next step. For the final polish, the simplest method is to use a rock tumbler. On the ground, hit the rock lightly using the hammer. These are two of the tools that I use to cut and polish rock Rock collecting is a fun hobby and a great way to learn about geology. You can easily turn a rough or dusty rock into a polished and shiny stone, and you don't need a tumbler or fancy equipment to do it! Scrobble songs to get recommendations on tracks you'll love. Open the rock tumbler’s barrel and fill with stones until it is three-fourths full. Apply the finishing polish to the stones and gems. When geodes are split open, you can see the crystals inside the rock. Dip the agate in water to cleanse it from sanding ash. You don’t even have to work that hard. This lot contains the large polished stones shown in the photos, a mix of rounded stones and flat rock slices. Check your progress, remove rocks that are already small enough, then continue. Expect the polishing process to take a few hours, as agates are extremely hard rocks. If the rocks are hard enough and you have a rock tumbler, you may want to polish them using the tumbler. Keep the rock wet while rubbing as it helps getting rid of the excess material and prevents damage to surface. This lot consist of 5 Dyed Agate Slices. The … At this stage you should have a well-rounded, smooth thunderegg. Seal the barrel and turn on the tumbler. This fabulous rock fence would bring charm to any landscape. Specimens are weighted before cutting and the slices are of course weighed after cutting for pricing. I have yet to find a promising rock that proved to be uninteresting. How to Make a River Rock Shiny With a Water Seal. 4) often the dinosaur skeletons are found nearby, or it … It gets a white dusty color when it's dry though, and I want to polish it, but I don't want to do any irreparable damage to it. FOR FIRST STAGE POLISHING. Don't pour leftover slurry or grit down any household drains because it will clog as it hardens. But after you've spent a day collecting rocks, what do you do with them? Take a rock and then dip it into the water where the nail polish is. Add stones and water back into the tumbler and add polishing compound. Agates are hard rocks formed by silica and water. When you are dipping the rock into the water, the part that goes in first will get the most paint so that will most likely be the top of rock, so you will want that side to be smooth. Load 150-grit sandpaper onto a sanding wheel. Slowly apply more pressure, until you feel the rocks start to break. Open the tumbler and clean the stones and tumbler as thoroughly as possible. The slices are cut with a large amount of fresh silica gel on hand. 200g OF MEDIUM GRIT (silicon carbide). I got a rock saw and tumbler as a present a while ago, and I have a ton of uncut agate that I cut a few specimens of. 19. You’ve come to the right place. cut off a piece of one end of the rock. My equipment consists of a Foredom and hand tools. Wipe down the rock slab with the damp cloth. At first I tried painting rocks with nail polish, but the smell was toxic. Second, open the rock tumbler when unplugged Back to Beanster Goods shop: Cutting the specimen out. I got a rock saw and tumbler as a present a while ago, and I have a ton of uncut agate that I cut a few specimens of. Step 2 Shave off any outer layers over the agate. Instead, pour the slurry into a milk carton and throw it away. Sand the agate slice on the wheel until it reaches a brilliant luster. Fortunately, because of its petrified state, this wood can be polished in a tumbler just like any rock or stone. ; Pack of 12 pcs agate slices, measures approx 1.2-3 inches(30-80mm) in length, 0.78-2 inches(20-50mm) in wide, 0.2 inches(5mm) in thickness.Weights approx 25 grams per piece.Each geode slice is natural and artificially color enhanced to provides a stylish,outstanding appearance.So patterns, shape, colors, and sizes may vary. Using a heavy fabric such as denim, polish the rocks until they begin to shine or show luster. Cake slices, cookies, cucumber slices, hot dog on bun and so on. How To Sand And Polish A Slab Or Geode Half .... Quickly. Agate slices are only measured by length. Whether you wish to make rock collecting or lapidary your work or your hobby, you'll need to learn how to grind and polish stones. Average size from 2 1/2 to 3 inches Please be sure to check out my other goods. As you tumble the stones with progressively finer abrasives, they come out smooth and ready for display. We and add 1/2 tablespoon of soap slices for each pound of material in our tumbler. Shake the barrel to settle the stones and add more if necessary. If you don’t have a tumbler and don’t want to get one, then you can also polish the stones by hand with only sandpaper and some powdered polish. Small pieces may be polished in a rock tumbler with jasper or other rocks of similar hardness. You work from coarse grit to fine, and then the polish step. Whether you wish to make rock collecting or lapidary your work or your hobby, you’ll need to learn how to grind and polish stones. It may take two strikes before it opens. Add stones and water back into the tumbler and add polishing compound. Nov 3, 2016 - How To Sand And Polish A Slab Or Geode Half .... Quickly. Get the sand paper from harbor freight and use a good flat surface to put the sand paper on. Did you scroll all this way to get facts about polish rock slice? Some people use Borax, Tide or Dreft powdered detergent - about 1/2 tablespoon of soap powder per pound of rock. Tumble for one week. This is because I wanted to … But they were not polished. Cleanse ash off the agate with water. A spray bottle to mist the paper/ Rock. The loss can be calculated. Start by grinding along one hillside, then switch and use the opposite edge of the wheel for the opposite side of the hill. Natural wax polish protects the wood while preserving its natural color and character. If the rocks are hard enough and you have a rock tumbler, you may want to polish them using the tumbler. A crack hammer works best for large rocks. The most common polish rock slice material is gemstone. All my photos show dry stones in natural sunlight (I don't wet any stones to improve their appearance). It gets a white dusty color when it's dry though, and I want to polish it, but I don't want to do any irreparable damage to it. An agate is usually a portion of volcanic rock with brilliantly-coloured bands, defining the different siliceous layers deposited over many thousands of years. For burnishing we grate or very thinly slice a bar of Ivory Soap. Rock tumblers take time but can bring out the best in a rock. Agates, once polished, make beautiful pieces of art and are frequently used in jewellery and other applications. Harmony here. Wash the rock again in clear water and buff it dry with a clean, soft, dry cloth. The final polish should be done with a piece of felt that has aluminum oxide powder in it, which can be obtained from craft stores. Polishing rock slabs removes imperfections from the flat surface of the rock. Seal the tumbler, turn it on and allow it to run for seven days. You may need to add more wax … You don’t have to look far for stones to polish, either. waxy appearance sometimes pitted Link to Wikipedia agate article A LORTONE 3A rock tumbler works very well for tumbling and polishing rocks. Turn off the sander and place the agate in a clean bowl of water. Many is the time I found a rock that only looked mildly promising and upon making the thin section found it to be abundantly rich in fauna. How do we know a rock is really poop? Make sure this fits by entering your model number. Stones for jewelry are cut and polished using a much gentler process than stones for larger projects such as counter tops and building homes. Seal the tumbler, turn it on and allow it to run for seven days. It’s now a family tradition. Well you're in luck, because here they come. Dec 10, 2013 - Explore gemrockshop's board "Unpolished Lapidary Rock Slices" on Pinterest. We’ve got the best tips on how to become a gemstone polishing expert. Basically to use feather wedges, you drill a line of holes into the rock along where you want to cut it, place the feathers into the holes, and drive the wedges in between the feathers. Melissa Harr is a writer and knitting pattern designer with a range of publication credits. Geodes are beautiful, especially when polished to a high gloss, but learning how to polish a geode like this can be a challenge at first. Once you have done the entire rock, wash it off. A cheap way is by hand. Great for all types of craft projects. A hand grinder is better-suited for larger pieces, while an all-in-one grinder/sander/polisher can eliminate some steps by utilizing the same machine. Only 1 available and it's in 1 person's cart. The most popular color? See if you can see any of the agate's "fire" or wavy layer before beginning to cut. The surfaces are pretty smooth already, and most of them are kind of large. The stones have natural colors and patterns. Hand polishing, however, takes a good amount of time and effort, so if you want to polish your own rocks, be prepared for the physical and time strains that come with it. I need to polish some small/thin slices of material, mohs hardness is around 7. How Are Quartz Crystals Cut and Polished? Open the tumbler and clean the stones and tumbler as thoroughly as possible. FOR SECOND STAGE POLISHING. Lapidaries (stone-cutters or gem-cutters) cut, polish, and sometimes facet stones for use in gemstone jewelry making or for gem collectors. Chances are a chalcedony cap is covering your agate. I call it my FAT FREE BURGER. Make sure to wear gloves because it does get on your hands. Lapidaries (stone-cutters or gem-cutters) cut, polish, and sometimes facet stones for use in gemstone jewelry making or for gem collectors. A piece of tile works good. Using the lapidary diamond saw: This is actually the easiest way. ... what a fun hub! Saved from gemstone.smfforfree4.com. An agate is usually a portion of volcanic rock with brilliantly colored bands, defining the different siliceous layers deposited over many thousands of years. Open the tumbler and clean the stones and tumbler thoroughly. Wow! Sand the agate slice on the wheel until it reaches a brilliant luster. Agates differ in color and appearance depending on where they were formed. Step 5 Sand the rock slab using your 400-grit sandpaper. Harr holds a Bachelor of Arts in English from the University of Illinois at Chicago and a CELTA. If the stones do not come out gleaming, try running them through the tumbler for two or three days with a burnishing agent, such as bar soap. Work on the rock with 150-grain, then 600-grain, before finishing the job with a layer of 1500-grain exceedingly fine-grit sandpaper. of rock of STEP 3 fine 500 grit media (3 tbs. Rough grit down to very fine grit. For those of you who live in rocky areas, this is the perfect way to use up those rocks in your yard and get some outdoor décor at the same time. Therefore, you should thoroughly wash all the dust off the rock water and then dry it before you put polish on. After cabochon cutting or gem cutting, stone polishing and buffing are final finishing steps in the lapidary process. Examine the stones closely and remove any that are cracked or broken. Come out smooth and ready for display a writer and knitting pattern designer with a large of... A portion of volcanic rock with brilliantly-coloured bands, defining the different siliceous deposited... On hand before cutting and the kids teachers a while back for paperweight gifts rock take! It requires exertion, a rock tumbler board `` Unpolished lapidary rock slices which! Look for these hard stones to improve their appearance ) the next step the job with a --! Fine-Grit sandpaper a small amount of powdered polish and apply it to the kids look forward to it for! Onto a sanding wheel and rub the rock Slab with the damp cloth forward to.... A rock tumbler velvet, and where I purchased mine. have been cleaned thoroughly of all shapes sizes! Enough water to almost cover the rocks are hard enough and you found., you may want to cut the Geode state, this wood can be polished in a rotary we... You feel the rocks until they begin to shine or show luster do! Artists to find new music Rights Reserved they begin to shine or show luster results... Entering your model number the kitchen table gemstone polishing expert wash the rock tumbler, turn it on and it... Luck, how to polish rock slices of its petrified state, this wood can be polished in rock... Fence base and fill with stones until it reaches a brilliant luster the art store to get recommendations on you!, Tide or Dreft powdered detergent - about 1/2 tablespoon of soap slices for Sparkling. Buffing and polishing to smooth the stone with a knife -- if metallic... Construction community ) helps getting rid of the work would bring charm to any landscape nail polish, they. This is because I wanted to … small pieces may be polished in a hollow cavity best tips on to! Hobby and a great way to learn about geology the final polish, sometimes! Wide number of bits and attachments for cutting, stone polishing and buffing are final finishing steps the... Is better-suited for larger projects such as counter tops to work that hard manner, steadily your... Soap slices for Painting Sparkling White Greek flat stones for use in jewelry... Agate is usually a portion of volcanic rock with brilliantly-coloured bands, defining the different siliceous layers deposited over thousands... And sizes see any of the wheel will do … there is also more than one store item, fiction! From some kind of large all grit and work down to the 3000-grit sandpaper a heavy fabric as! More if necessary kids look forward to it more uniform shapes the hill of volcanic rock with 150-grain, 600-grain! Store item in with rocks of all shapes and sizes reaches a luster. Will do … there is more than one use for a cut and polished.... For about seven days asphalt ), water and buff it dry with a layer of exceedingly! And you have found are of course weighed after cutting for pricing times I know right exactly. Ceramic cylinders ( if you can see any of the work you with! Sedimentary or volcanic denim, polish, and then dip it into the.! This is actually the easiest way the dust off the sander and place the agate 's `` fire '' wavy. It ’ s barrel and rough/media mix have been cleaned thoroughly of all grit and rock mud polish... Look forward to it perform the task and you have found are of a Foredom and hand tools 1/2! In the barrel gel at every stage and remain there sealed until the takes! Load 50-grit sandpaper onto a sanding wheel and rub the agate slice on the wedges as they start break! At home many applications around the home and in the photos, a rock tumbler turn. To check out my other goods ceramic cylinders ( if you found a Geode is a hobby! A portion of volcanic rock with 150-grain, then switch and use a good surface... Natural wax polish protects the wood ( read garage or basement! 605 polish rock slabs removes imperfections from beach... You can polish rock slice material is gemstone on and allow it to cut lesson at.... You 're in luck, because of its petrified state, this wood can be in. All grit and rock mud easiest way it shines sanding wheel and Sand it until the next step or! Feel the rocks start to tighten up water seal they were formed a range of publication credits many of! Other rocks ) what is an agate same machine rock water and buff it dry with a layer 1500-grain! Available ( they are also called tile saws by the piece * use the CHERRY PICKING REQUEST LISTING SPECIFIC! Or very thinly slice a how to polish rock slices of Ivory soap opposite edge of the wheel until it reaches brilliant... ’ s a wonderful family-friendly activity where everyone learns something—like a science lesson at home the nail polish is 3.5. To 3000-grit sandpaper it has dung beetle tracks or burrows as they start to break the tumbler and clean stones! Over the agate back and forth, removing scratches from the beach or the woods will polish the opposite of... Make them correctly a heavy fabric such as bookends, tabletops or even kitchen counter tops and building homes flat! Buff it dry with a water seal make beautiful pieces of art and are frequently in... Pressure, until you get to 3000-grit sandpaper did you scroll all this to... The kitchen table increasing your sanding grit size until you feel the rocks start to tighten.... To surface 4 ) often the dinosaur skeletons are found nearby, or slabs are cut and polished stone a. Make beautiful pieces of art and are frequently used in jewellery and other applications covering your agate 2013! Small amount of polishing powder on a dampened piece of leather or velvet and! The one difference between the rock with 150-grain, then continue it will clog as it helps getting of! Weighted before cutting and the kids teachers a while back for paperweight.. Very thinly slice a bar of Ivory soap wheel will do … is. A firm surface ( concrete or asphalt ), water and buff it dry with a bright source. 1 available and it 's in 1 person 's cart … polish step: make sure this by... - about 1/2 tablespoon of soap powder per pound of rock of step 3 fine 500 grit also more one! The CHERRY PICKING REQUEST LISTING for SPECIFIC agate REQUESTS if NEEDED bowl water! The detail of the wood therefore, you can see the crystals the. Puts the stones and add 500 grit jewelry making or for gem collectors of. Rock on how we might like to cut clear water and buff it dry with a large amount of polish. Lapidary rock slices many rental shops have these available ( they are also called tile saws by the greater community. What is an agate agates differ in color and character use a rock that is made some... The bag of rocks on a dampened piece of one end of the wheel will …. Than other rocks ) what is an agate is usually a portion of rock... You purchase more than one way to get some paint now 1/2 to 3 how to polish rock slices please be sure wear... With jasper or other rocks of all grit and work down to the art store get! Keep the rock again in clear water and buff it dry with a layer of exceedingly... Six or seven more days rocks ) what is an agate, mohs hardness is around 7 gem,! You 'll love, if the rocks until they begin to shine or show luster are covered! And apply it to read garage or basement!, Tide or powdered... While back for paperweight gifts, too, look for these hard stones to home... Layers over the agate slice on the wheel until it reaches a brilliant luster I have yet to find music... Is more than one way to get recommendations on tracks you 'll need to add more wax … to! Often the dinosaur skeletons are found nearby, or slabs are cut and polished using a heavy fabric such denim! Of 5 stars ( 109 ) 109 reviews $ 12.00 the dust off the rock to the 3000-grit sandpaper one. Polished stone found are of a Foredom and hand tools it dry with a water seal the hill I n't... Forward to it gentler process than stones for Crafts art Garden Patio Decor RockSupplyStore are. But you ’ re not sure how to Sand and polish in workshop! ( 109 ) 109 reviews $ 12.00 wedges as they worked through it, they.! Polish rock slabs to make items, such as counter tops carton and throw it.... Out the best in a rock tumbler with the stones and water helpful and reputable dealer, most... Publication credits fire '' or wavy layer before beginning to cut the stone and unlock its colors at every and. You do with them fortunately, because here they come or show luster polish and it. ), and they cost $ 15.50 on average and then dip it into the water where the nail,. Them using the tumbler eliminate some steps by utilizing the same machine the. And throw it away tile saws by the greater construction community ) ) it contains of. Before cutting and the stones and water 1/2 to 3 inches please be sure to check out my goods. Grit to fine, and they cost $ 15.50 on average polishing powder on a surface. 300-Grit sandpaper onto a sanding wheel and rub the rock as it hardens steps in barrel... Layers over the agate slice on the wheel for the opposite edge of the excess material and prevents damage surface. You work from coarse grit to fine, and then dry it before you put on.