Moissanite: Mineral information, data and localities.
Moissanite, found as tiny crystals in some meteorites (originally formed in star dust) and kierlites, is a naturally occurring silicon carbide, SiC (in synthetic form a very important high-performance ceramic, more commonly known as abrasive "carborundum").A
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Expedition Magazine - Penn Museum
Carborundum, the artificial product silicon carbide, is a modern introduction which is responsible for the high gloss so characteristic of more recent pieces. This is not found in general on earlier jades, although the high polish on some Chinese objects of the third century B.C. and earlier is difficult to explain.
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(a) Photo of the SiC-rich specimen. Black spots are moissanite crystals. Scale bar is 2 cm. (b) Gemmy, platy crystal of moissanite shown with largest (001) face. The arrow indies a dropshaped
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Silicon - Wikipedia
Silicon is a chemical element with the syol Si and atomic nuer 14. It is a hard, brittle crystalline solid with a blue-grey metallic lustre, and is a tetravalent metalloid and semiconductor.It is a meer of group 14 in the periodic table: carbon is above it; and germanium, tin, and lead are below it. are below it.
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2017/5/8· Color varies from black and putty gray to shades of brown (figure 3), deep purple to pink, rusty red, and the occasional olive green. Pores (figure 4), an unusual glassy patina (figure 5), highly irregular surfaces (figures 6 and 7), and polycrystallinity (figures 8 and 9) distinguish carbonado from conventional diamonds.
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I silicon carbide! The form of silicon carbide I use is a fine dark grey powder which I often mix into glazes for different surface texture effects. Silicon carbide is quite an abrasive material, and it ‘erupts’ when fired in the kiln, forming decorative bubbles and craters on