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Sapphires are a precious gemstone, a variety of the mineral corundum, consisting of aluminum oxide (α-Al 2 O 3) with trace amounts of elements such as iron, titanium, chromium, copper, or magnesium. It is typically blue, but natural "fancy" sapphires also occur in yellow, purple, orange, and green colors; "parti sapphires" show two or more colors.
Download as PDF; Printable version; In other projects ... This is a list of gemstones, organized by species and ... Pages for logged out editors learn more ...
Citrine is a transparent, yellow variety of quartz. Its name is derived from the Latin word citrus (citron tree), by way of the French citrin or citron (lemon). [3] Citrine is one of the most popular yellow gemstones. It is sometimes used as a modern, more affordable alternative to the traditional November birthstone, topaz. Not every yellow ...
Articles related to Gemology and Jewelry should be tagged on the Talk page with {{WP Gemology and Jewelry}} For full details about using this talk page template see Template:WP Gemology and Jewelry .
Download as PDF; Printable version; ... out of 144 total. This list may not reflect recent changes. Gemstone; List of gemstones by species; A.
Bahia Emerald [2]; Carolina Emperor, [3] [4] 310 carats uncut, 64.8 carats cut; discovered in the United States in 2009, resides in the North Carolina Museum of Natural Sciences, Raleigh, NC, US
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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 .