Hibonite ((Ca,Ce)(Al,Ti,Mg)12O19) is a brownish black mineral with a hardness of 7.5-8.0 and a hexagonal crystal structure. It is rare, but is found in high-grade
References
* [http://webmineral.com/data/Hibonite.shtml Webmineral]
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hibonite — noun A calcium aluminate mineral found in carbonaceous chondrite meteorites … Wiktionary
Hibonit — Hibonit, Größe: 1,6 cm Fundort: Eluviale Lagerstätte von Esiva bei Amboasary, Region Anosy (Fort Dauphin), Provinz Tuléar (Toliara), Madagaskar Chemische Formel (Ca,Ce)(Mg,Fe2+)Al10(Ti … Deutsch Wikipedia
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Inclusions minérales riches en calcium et en aluminium — CAI (taches blanches) dans une météorite chondritique, collection de l American Museum of Natural History Les inclusions minérales riches en calcium et en aluminium ou en anglais calcium aluminium rich inclusion ou Ca Al rich Inclusion (CAI) sont … Wikipédia en Français
Jean Béhier — (1903 1963) est un minéralogiste français de formation autodidacte qui a rassemblé une collection de plus de 5000 pièces divisée en trois parties: les minéraux français, les minéraux européens et les minéraux malgaches. Cette collection fut… … Wikipédia en Français
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Calcium-aluminium-rich inclusion — A calcium aluminium rich inclusion or Ca Al rich inclusion (CAI) is a centimeter sized light colored calcium and aluminium rich inclusion found in carbonaceous chondrite meteorites. CAIs consist of minerals that are among the first solids… … Wikipedia
Allende (météorite) — Météorite d Allende Fragment d Allende Caractéristiques Type Chondrite Classe Chondrite carbonée … Wikipédia en Français
meteorite — meteoritic /mee tee euh rit ik/, meteoritical, meteorital /mee tee euh ruyt l/, adj. /mee tee euh ruyt /, n. 1. a mass of stone or metal that has reached the earth from outer space; a fallen meteoroid. 2. a meteoroid. [1815 25; METEOR + ITE1] * * … Universalium
