Thaumasite
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Thaumasite is a silicate mineral with chemical formula Ca3Si(CO3)(SO4)(OH)6·12(H2O). It occurs as colorless to white prismatic hexagonal crystals, typically as acicular radiating groups. It also occurs as fibrous masses. Its Mohs hardness is 3.5 and it has a specific gravity of 1.88 to 1.90. Optically it is uniaxial negative with indices of refraction of n = 1.507 and n = 1.468. It occurs as a hydrothermal alteration mineral in sulfide ore deposits and geothermal alteration of basalt and tuff. It occurs with zeolites, apophyllite, analcime, calcite, gypsum and pyrite. Thaumasite can also be formed along with other calcium-silicate hydrates (CSH) during cement alteration, especially when sulfate attack develops.
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GarantieWeitere Informationen
- Allgemeine Informationen
- GTIN 09786130968571
- Genre Chemie
- Editor Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
- Anzahl Seiten 72
- Herausgeber Betascript Publishing
- Größe H220mm x B220mm
- EAN 9786130968571
- Format Fachbuch
- Titel Thaumasite
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