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Wednesday, 19 September 2007

Friedlander, J. One of the early in­vestigators into the problem of diamond synthesis. In 1898, he dis­solved graphite in fused olivine and obtained small octahedral crystals he thought to be Diamonds. Later he ex­perimented with a mixture of metals that had the iron and magnesium content of kimberlite, with graphite as a source of carbon, in a thermite reaction. He found that an addition of titanium dioxide helped in the formation of the tiny crystals. How­ever, there is no proof that the crys­tals were diamonds. See synthetic


frosted crystal. A diamond crystal having a frosted appearance.

FTC. See federal trade commission.

full-cut brilliant. A term used cor­rectly for a brilliant-cut diamond or colored stone with the usual total of 58 facets, consisting of 32 facets and a table above the girdle and 24 facets and a culet below. On colored stones the girdle is usually polished,

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