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Combeite - Wikipedia, the free encyclopedia
Combeite is a mineral with the formula Na 2 Ca 2 Si 3 O 9 . It has a trigonal crystal system. It was discovered in 1957 and can be found in Zaïre, Germany, and Tanzania.
en.wikipedia.org/wiki/Combeite |
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General Combeite Information ... Combeite Image ... Combeite Crystallography...
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Crystalline cleavage fragment of combeite. Mont Saint Hilaire, Quebec, Canada.
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Classification of Combeite ... Type Occurrence of Combeite ... Crystallography of Combeite...
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Combeite c 2001 Mineral Data Publishing, version 1.2 Na2 Ca2 Si3 O9 Crystal Data: Hexagonal. Point Group: 3 2=m: Poorly developed stout hexagonal prisms, to a few tenths mm, lacking terminal faces; most material is strongly altered.
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The third occurrence of combeite is in lapilli ejected from the active ... The combeite occurs as euhedra in equilibrium with nepheline, Na-melilite, Ti- ...
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Abstract Refinements of the crystal structures of the high- and low-temperature modifications of combeite, previously described by Fischer & Tillmanns ...
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Novel fillers comprising combeite glass-ceramic are provided, along with filled polymerizable resin composites. Further provided are methods for making the combeite crystallite-containing novel fillers for use in hardenable, biocompatible bone restorations.
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Artioli G. and Galli E., AM 84:1445-1450, 1999. Götzenite and combeite, two new silicates from the Belgian Congo, Sahama T.G. and Hytonen M.A.. MM 31:503-510, 1957. Greigite, the thio-spinel of iron;
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This document was prepared in conjunction with work accomplished under Contract No. DE-AC09-96SR18500 with the U. S. Department of Energy. DISCLAIMER; This report was prepared as an account of work sponsored by an agency of the United States Government. United States Government nor any agency thereof, ... WSRC-TR-2005-00124;
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