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Selenite, satin spar, desert rose, and gypsum flower are crystal habit varieties of the mineral gypsum.. All varieties of gypsum, including selenite and alabaster, are composed of calcium sulfate dihydrate (meaning that it has two molecules of water), with the chemical formula CaSO 4 ·2H 2 O. Selenite contains no selenium, the similar names both derive from Greek selḗnē (σελήνη 'Moon').
Selenium occurs naturally in a number of inorganic forms, including selenide, selenate, and selenite, but these minerals are rare. The common mineral selenite is not a selenium mineral, and contains no selenite ion, but is rather a type of gypsum (calcium sulfate hydrate) named like selenium for the moon well before the discovery of selenium ...
Gypsum occurs in nature as flattened and often twinned crystals, and transparent, cleavable masses called selenite. Selenite contains no significant selenium; rather, both substances were named for the ancient Greek word for the Moon. Selenite may also occur in a silky, fibrous form, in which case it is commonly called "satin spar".
Vitamin D, magnesium, fish oil, vitamin C and zinc continue to be among the most popular supplements today, but the mineral selenium is also climbing in popularity.
Selenite "sword", 22.6 by 2.6 by 1.6 centimetres (8.90 in × 1.02 in × 0.63 in). A small version of the giant crystals, likely found in a natural cavity in the mine. A scientific team coordinated by Paolo Forti, specialist of cave minerals and crystallographer at the University of Bologna (Italy), explored the cave in detail in 2006.
Selenite is a fibrous variety of gypsum, [1]: 527 the most common form of satin spars; Gypsum, satin spar [2]: 429 in the form of a lustrous fibrous variety, not, however, defined as selenite; [3]: 217 Calcite or calcite spar is a fibrous variety [2]: 429 superficially resembling selenite, [4]: 169 but much less common in nature;
Selenite (mineral), a variety of gypsum (CaSO 4 ·2H 2 O) Selenites is a synonym of Zophos, a genus of land snails in the family Haplotrematidae; Selenite Range, a mountain range in Pershing County, Nevada Selenite Peak, a summit in the Selenite Range, Nevada; Selenite, a high class citizen that experienced space travel, from the videogame Event_0
Skip the loaf of pre-sliced white bread during your next grocery trip. “There is minimal nutritional value in processed white bread (the one that comes in packages),” says Dr. Lopez-Jimenez.
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