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Gemstones of the World revised 5th edition, 2013 by Walter Schumann ISBN 978-1454909538 Smithsonian Handbook: Gemstones by Cally Hall, 2nd ed. 2002 ISBN 978-0789489852 hide
Given name Heliodor Given name / surname It is a given and surname. [2] [3] Heliodor is a specimen of the mineral Beryl. Heliodor has a yellow, greenish yellow, or golden-yellow color. The given name has a Czech-Slovak origin. [3] Precious coral: Coral (given name) Given name Coralie: Given name Coraline (given name) Given name Celestine ...
Jeremejevite is a mineral that shows pleochroic properties, which is an optical phenomenon in which the mineral's color appears to change depending on the angle at which it is viewed. Blue specimens from Namibia show a light cornflower blue to colorless to light yellow pleochroism, while yellow materials show light yellow to colorless pleochroism.
Well, the month of June means not one, not two, but three of the most gorgeous birthstones of the year: the classic pearl, the celestial moonstone and the ultra-rare alexandrite. These glam gems ...
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
The Sunrise Ruby [1] [2] [3] has been the world's most expensive ruby, most expensive coloured gemstone, and most expensive gemstone other than a diamond [2] [3] [4] until the discovery of the Estrela de Fura. Originally mined in Myanmar, its current name is derived from a poem of the same name, written by the 13th-century Sufi poet Rumi. [5]
The Star of South Africa was the initial name given to this diamond, when it was purchased as an 83.5-carat (16.70 g) rough diamond. The diamond is a D-color, pear-shaped stellar brilliant cut stone, weighing 47.69 carats (9.538 g). —
Most pieces of the gem, prior to Taaffe, had been misidentified as spinel. For many years afterwards, it was known only in a few samples, and it is still one of the rarest gemstone minerals in the world. [6] Since 2002, the International Mineralogical Association-approved name for taaffeite as a mineral is magnesiotaaffeite-2N'2S.