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Paint By DS is a painting simulator developed by Japanese studio Ertain for the Nintendo DS. The game challenges players to recreate classic artworks with the DS stylus. It allows players to recreate pieces from artists such as Van Gogh. Players can mix oil-based and water-based paints. [1]
Fordite, also known as Detroit agate, Motor City agate, [1] paint rock, or paint slag, [2] is a lapidarist term for polished pieces of finely layered paint masses from automobile factories. The masses consist of automotive paint which has hardened sufficiently to be cut and polished.
Rotten stone, sometimes spelled as rottenstone, also known as tripoli, is fine powdered porous rock used as a polishing abrasive for metal smithing, historically for the grinding of optical lenses and in woodworking. It is usually weathered limestone mixed with diatomaceous, amorphous, or crystalline silica.
Bridal crown made from pure tin and tumble polished rock crystals in 1984. In the polishing step, rock polish is added in place of grit as well as the plastic tumbling pellets. After further tumbling, the rocks should now have a shiny look when dry. If this is not the case and the rocks appear to have a film on them, a burnishing step may be ...
The dust produced by lapidary techniques on such stones can cause health issues if inhaled. [26] Copper(II) oxide, which is common in colorful minerals such as turquoise and malachite, can damage the endocrine and central nervous systems. The most common minerals are silicates, and the dust from these rocks can result in silicosis.
An ordinary 30 μm thin section is prepared as described above but the slice of rock is attached to the glass slide using a soluble cement such as Canada balsam (soluble in ethanol) to allow both sides to be worked on. The section is then polished on both sides using a fine diamond paste until it has a thickness in the range of 2–12 μm.
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Hertfordshire puddingstone is a silica-cemented conglomerate composed of rounded flint pebbles and cobbles with matrix of fine sand and silica cement. The Hertfordshire Puddingstone is characterized by silica-cemented flint gravel that is brown to deep red in colour and often exhibits black exteriors and thin rinds on cut or polished surfaces.