Chabazite
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| Chabazite | |
|---|---|
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| General | |
| Category | Tectosilicate minerals |
| Group | Zeolite group, chabazite-lévyne subgroup |
| Formula | Page Module:Chem2/styles.css has no content.M[Al2Si4O12]·6H2O |
| IMA symbol | Cbz[1] |
| Strunz classification | 9.GD.10 |
| Crystal system | Trigonal |
| Crystal class | Hexagonal scalenohedral 3m H-M symbol: (3 2/m) |
| Space group | R3m |
| Identification | |
| Color | Colorless, white, yellow, pink, red |
| Cleavage | distinct/good on {1011} |
| Fracture | irregular/uneven |
| Mohs scale hardness | 4-5 |
| Luster | vitreous |
| Streak | white |
| Diaphaneity | transparent, translucent |
| Specific gravity | 2.05 - 2.2 |
| References | [2][3] |
Chabazite (Page Module:IPA/styles.css has no content.UK: /ˈkæbəzaɪt/)[4] is a tectosilicate mineral series in the zeolite group,[5] closely related to gmelinite, with the chemical formula Page Module:Chem2/styles.css has no content.M[Al2Si4O12]·6H2O, where M is one or more metal cations.[3] Recognized minerals in the series include Chabazite-Ca, Chabazite-K, Chabazite-Na, and Chabazite-Sr, depending on the prominence of the indicated cation.
Chabazite crystallizes in the triclinic crystal system with typically rhombohedral shaped crystals[4] that are pseudo-cubic. The crystals are typically twinned, and both contact twinning and penetration twinning may be observed. They may be colorless, white, orange, brown, pink, green, or yellow. The hardness ranges from 3 to 5 and the specific gravity from 2.0 to 2.2. The luster is vitreous.
It was named chabasie in 1792 by Bosc d'Antic and later changed to the current spelling.
Chabazite occurs most commonly in voids and amygdules in basaltic rocks.
Chabazite is found in India, Iceland, the Faroe Islands, the Giants Causeway in Northern Ireland, Bohemia, Italy, Germany, along the Bay of Fundy in Nova Scotia, Oregon, Arizona, and New Jersey.
Synthetic chabazite
Many different materials that are isostructural with the chabazite mineral have been synthesized in laboratories. SSZ-13 is a CHA type zeolite with an Si/Al ratio of 14. This is a composition not found in nature.
References
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- ^ Page Module:Citation/CS1/styles.css has no content.Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
- ^ Mineralienatlas
- ^ a b Page Module:Citation/CS1/styles.css has no content."Chabazite-Levyne Subgroup". www.mindat.org. Retrieved 2025-02-22.
- ^ a b The New Oxford Dictionary of English (1998) Template:ISBN - p. 300 "chabazite /'kabəzʌɪt/ noun "A colourless, pink or yellow zeolite mineral, typically occurring as rhombohedral crystals".
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External links
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