[DOC] [TLE] Moissanite - Wikipedia [PAR] Moissanite is the name given to naturally occurring silicon carbide and to its 
various crystalline polymorphs. It has the chemical formula SiC and is a rare 
mineral, discovered by the ... SiC is commonly found around these stars, as 
deduced from their infrared spectra. ... "History and Applications of Silicon 
Carbide". Moissanite... [DOC] [TLE] Gemstone - Wikipedia [PAR] A gemstone is a piece of mineral crystal which, in cut and polished form, is used 
to make ... Another unscientific term for semi-precious gemstones used in art 
history and ... For example, diamonds are made of carbon (C) and rubies of 
aluminium oxide (Al ... In its rough crystalline form, a diamond will do none of 
these things;... [DOC] [TLE] The Kimberley Octahedral diamond is the largest naturally formed ... [PAR] Today it is the 14th largest gem-quality rough diamond ever discovered in the 
world. ... Type Ib, but these diamonds are very scarce constituting only about 0.1 
% of all ... of South Africa, and was a large naturally formed yellow octahedral 
crystal. ... De Beer between 1867 and 1871, two diamond mines were dug on the 
farm,... [DOC] [TLE] Ask Me A Trivia Question -- 2 -- - Discussion on Topix [PAR] Nov 11, 2012 ... Alex Trebek wrote: ______ GEMS & JEWELRY ______. The 1st of these 
crystalline carbon gems discovered in South Africa was found in 1867. [DOC] [TLE] The 4 C's Of Diamonds - Encyclopedia - The Free Dictionary [PAR] the hardest natural substance known, used as a gem and in industry. ... In 1867, 
a stone found in South Africa was recognized as a diamond. Within a ... with, the 
De Beersled marketing cartel, formed to maintain the price of diamonds at a 
high level. ... Three crystalline modifications of carbon are known: the cubic 
variety,... [DOC] [TLE] Carbon [PAR] Dec 9, 2002 ... The properties of these forms of carbon, which are very important, are discussed 
in separate sections. .... A major gem is cut from an octahedral crystal as shown, 
with its ... Diamonds were discovered in southern Africa in 1867, when a 20 ct ... 
Botswana is now a larger diamond producer than South Africa. [DOC] [TLE] Gems & Gemology, Vol. 42, No. 3 - GIA [PAR] Jan 19, 2006 ... means for analyzing and grading gems; these become industry ...... ed 0.8 tons of 
diamonds before the South African discov- ery in 1867. [DOC] [TLE] Precious stones and gems : their history and distinguishing ... - Gallica [PAR] Jan 10, 2011 ... The study of; Pearls^specially, is,,not sa intricate &s ; .... Precious Stones are 
found in the same perfection, as far as their quality is concerned, ... are preserved
, and many even retain traces of their original crystalline form. ...... These pebbles, 
nearly pure carbon, Avere sold on the spot at 75 cents, the carat. [DOC] [TLE] Carbon - Ullmann's Encyclopedia of Industrial Chemistry - Vohler ... [PAR] Jan 15, 2002 ... Most carbon materials deviate more or less from the perfect crystal structure. ... 
Such primary deposits are found in South Africa, Russia, and Tanzania. ... Less 
than the half of the mined diamonds can be used for gems; the .... Under these 
conditions, graphite is metastable, and diamond, which is less... [DOC] [TLE] coppe~ iron - Mining History Association [PAR] MINING HISTORY OF WYOMINOS ... discovery was the finding of gold in the 
South Pass .... Mullison investigated these and found prospects on .... November 
1896, 495) reported that the Carbon County .... June 8, 1867, lode gold was 
discovered along Willow ..... fields of South Africa had eclipsed diamond 
production. [DOC] [TLE] Diamonds Archives | Bespoke Jewellery | Engagement Wedding ... [PAR] Dec 9, 2014 ... The single element that makes up diamonds is carbon  the ... quarter, diamond 
engagement rings, Diamonds, gemstones on April 21, 2015 by ... 1867: 
Diamonds have been discovered in the Cape Colony, which is ... 1880: Cecil

Question: The 1st of these crystalline carbon gems discovered in South Africa was found in 1867
Answer: Diamonds