hibonite
Also found in: Wikipedia.
hibonite
[′hib·ə‚nīt] (mineralogy)
CaAl12O19 Common mineral found in carbonaceous chondrite meteorites; occurs only rarely on earth.
Also found in: Wikipedia.
References in periodicals archive
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But, when this material started cooling, the first minerals, including hibonite, started forming inside space rocks.
As the hibonite crystals found in the Australian meteorite also carried very similar traits, the team decided to analyze its makeup in detail.
Graining in pink diamond * Yellow HPHT-treated rough diamond * Color-zoned emerald * Orange faceted eosphorite * Large faceted hibonite * Dyed and natural green jadeite * Coated kornerupine beads * Assembled cultured blister pearl * Large abalone pearls * Irradiated green-blue CVD synthetic diamonds * Polished topaz imitating diamond rough.
Hajjaji et al., "Ni-doped hibonite (Ca[Al.sub.12][O.sub.19]): a new turquoise blue ceramic pigment," Journal of the European Ceramic Society, vol.
There is upside risk to our reserves forecast from New World's Danica Jutland prospects and from Wintershall's Hibonite discovery.
Behier, in collaboration with analytical laboratories in Madagascar, France and Washington, discovered approximately 70 mineral species new to Madagascar, as well as the new mineral species hibonite. Until his death in 1965, he also worked at the organization and improvement of the Musee National de Geologie (National Museum of Geology) and the Laboratory of Mineralogy of the Service Geologique.
PHOTO : Cathodoluminescence (CL) micrograph of a buildup showing a large crystal of corundum (dk red to black), bladed crystals of hibonite or [Ca.sub.6] (dk green) crystallized on corundum.
PHOTO : A CaO-[Al.sub.2][O.sub.3-]Si[O.sub.2] rich sample buildup showing hibonite (green) corundum (red), anorthite (It blue) crystals enclosed in glassy (It brown) material.
Other minerals in the residues are: spinel, chromite, hibonite, rutlie, a Na-Cr silicate, diamond, silicon carbide and [Beta]-[Si.sub.3][N.sub.4], the hexagonal ([P6.sub.3]/m) polymorph of nierite ([Alpha]-[Si.sub.3][N.sub.4]).
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