| Catapleiite | |
|---|---|
Catapleiite.Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
| |
| 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 |
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]
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