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Mineral From Wikipedia, the free encyclopedia
Catapleiite (Na2ZrSi3O9·2H2O) is a dimorph of gaidonnayite rarely found by itself. Its name derives from the Greek words "κατα" (kata) and "πλειον" (pleion) meaning "with more" as it is mostly accompanied by a number of rare minerals. When pure it is colorless, but it is most often seen as a tan, brownish-red, light yellow, dark brown, flesh red or orangish in color. It is mostly found on Låven Island, Norway. Its hardness on the Mohs scale is around 5.5–6. It has a monoclinic crystal system.[1][2]
Catapleiite | |
---|---|
General | |
Category | Mineral |
Formula (repeating unit) | Na2ZrSi3O9·2H2O |
IMA symbol | Ctp |
Identification | |
Color | Colorless, tan, brownish-red, light yellow, dark brown, flesh red, orangish |
Mohs scale hardness | 5.5–6 |
Luster | Vitreous, dull |
Specific gravity | 2.65–2.9 |
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