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This is a list of gemstones, organized by species and types. Minerals ... January 2019) (Learn how and when to remove this message) This is a list of gemstones, ...
Gachalá Emerald [6] Mogul Mughal Emerald , 217.80 carats cut; mined in Colombia and cut in the Mughal empire in Hijri year 1107 (1695–1696), resides in the Museum of Islamic Art, Doha , Qatar [ 7 ] [ 8 ]
This is a list of minerals which have Wikipedia articles. Minerals are distinguished by various chemical and physical properties. Differences in chemical composition and crystal structure distinguish the various species .
The traditional classification in the West, which goes back to the ancient Greeks, begins with a distinction between precious and semi-precious; similar distinctions are made in other cultures. In modern use, the precious stones are emerald, ruby, sapphire and diamond, with all other gemstones being semi-precious. [9]
Taaffeite (/ ˈ t ɑː f aɪ t /; BeMgAl 4 O 8) is a mineral, named after its discoverer Richard Taaffe (1898–1967) who found the first sample, a cut and polished gem, in October 1945 in a jeweler's shop in Dublin, Ireland.
Spinel gemstones (1 C, 6 P) Pages in category "Gemstones" The following 144 pages are in this category, out of 144 total. This list may not reflect recent changes. ...
Caymanite at its type area is an uncommon variety of dolomite, also known as dolostone, originally reported from locations in the Miocene Cayman Formation [1] in the Cayman Islands: the Bluff in Cayman Brac and the East End on Grand Cayman. Sample of raw, polished Caymanite from Cayman Brac, Cayman Islands
Blue John (also known as Derbyshire Spar) is a semi-precious mineral, a rare form of fluorite with bands of a purple-blue or yellowish colour. In the United Kingdom it is found only at Blue John Cavern and Treak Cliff Cavern at Castleton in Derbyshire. During the 19th century, it was mined for its ornamental value, and mining continues on a ...
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