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2. Scaif - Wikipedia

   en.wikipedia.org/wiki/Scaif

   On the top surface a film of olive oil and diamond dust is placed. Surrounding the disk is a circular frame to catch the oil that is spun off as the disk is rotated. An older model of the arm piece for the stone. Hovering just above the surface of the disk is a mechanical arm to hold the diamond. It can be finely adjusted, to move the diamond ...

3. Lapidary - Wikipedia

   en.wikipedia.org/wiki/Lapidary

   Diamond cutting requires the use of diamond tools because of the extreme hardness of diamonds. The cutting, grinding, and polishing operations are usually lubricated with water, oil, or other liquids. Beyond these broader categories, there are other specialized forms of lapidary techniques, such as casting, carving, jewelry, and mosaics.

4. Tumble finishing - Wikipedia

   en.wikipedia.org/wiki/Tumble_finishing

   A collection of gemstone pebbles. Most of these stones, except four rough ones, were tumbled and polished. Tumbling of rocks as a lapidary technique for rock polishing usually requires a plastic or rubber-lined barrel loaded with a consignment of rocks, all of similar or the same hardness, some abrasive grit, and a liquid lubricant.

5. Sorry, But These Collectibles Are Now Worthless

   www.aol.com/finance/30-collectibles-now...

   The most valuable albums are rare and ideally kept in climate-controlled, dust-free storage. Otherwise, expect pennies on the dollar. Quick Cash Tip: Clear out those boxes of dusty CDs and score ...

6. Conservation and restoration of bone, horn, and antler objects

   en.wikipedia.org/wiki/Conservation_and...

   Such analysis determines if an object is a tool or was worked by humans and can also determine what an object was used for. Bone and antler tools, for example, will begin to polish over time with repeated use. By examining the worn, polished areas, scientists may determine how a bone or antler tool was held and used. [26] Worked antler

7. These are the only Amazon deals worth shopping this ... - AOL

   www.aol.com/lifestyle/the-only-amazon-deals...

   This set comes with the Little Green, a 3-inch tough stain tool, a HydroRinse self-cleaning hose tool, a spraying crevice tool, a trial size 8-ounce Spot and Stain with Febreze formula and a one ...