Hibonite
Hibonite is a mineral with the chemical formula (Ca,Ce)(Al,Ti,Mg)12O19, occurring in various colours, with a hardness of 7.5–8.0 and a hexagonal crystal structure. It is rare, but is found in high-grade metamorphic rocks on Madagascar. Some presolar grains in primitive meteorites consist of hibonite. Hibonite also is a common mineral in the Ca-Al-rich inclusions found in some chondritic meteorites. Hibonite is closely related to hibonite-Fe (IMA 2009-027, (Fe,Mg)Al12O19)) an alteration mineral from the Allende meteorite.
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Calcium–aluminium-rich inclusionClassification of non-silicate mineralsGemstoneGrossiteHibonite-(Fe)KrotiteList of gemstones by speciesList of meteorite mineralsList of mineralsList of minerals recognized by the International Mineralogical Association (H)Mineral evolutionOxide mineralPresolar grains
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Hibonite
Hibonite is a mineral with the chemical formula (Ca,Ce)(Al,Ti,Mg)12O19, occurring in various colours, with a hardness of 7.5–8.0 and a hexagonal crystal structure. It is rare, but is found in high-grade metamorphic rocks on Madagascar. Some presolar grains in primitive meteorites consist of hibonite. Hibonite also is a common mineral in the Ca-Al-rich inclusions found in some chondritic meteorites. Hibonite is closely related to hibonite-Fe (IMA 2009-027, (Fe,Mg)Al12O19)) an alteration mineral from the Allende meteorite.
has abstract
Hibonit ist ein selten vorkomm ...... e gemessene Dichte 3,84 g/cm³.
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Hibonita]] = oxido motako minerala da eta magnetoplumbite taldearen kidea da.
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Hibonite is a mineral with the ...... ul Hibon, a French prospector.
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La hibonita es un mineral de l ...... el apellido de su descubridor.
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La hibonita és un mineral de l ...... tretament relacionada amb la .
@ca
La hibonite è un minerale. Nel ...... nella meteorite di Murchison.
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caption
Hibonite, 1.6 cm sharp and lus ...... , Tuléar Province, Madagascar
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category
class
Dihexagonal dipyramidal
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cleavage
{0001} good, {100} parting
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color
Brownish black to black; reddish brown in thin fragments; blue in meteorite occurrence
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diaphaneity
Semitransparent
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fracture
Subconchoidal
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gravity
habit
Prismatic platy to steep pyramidal crystals
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luster
Vitreous
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name
Hibonite
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opticalprop
Uniaxial
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pleochroism
O = brownish gray; E = gray
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refractive
nω = 1.807, nε = 1.79
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streak
reddish brown
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symmetry
P63/mmc
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system
unit cell
a = 5.56, c = 21.89 [Å]; Z = 2
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wikiPageUsesTemplate
subject
hypernym
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Hibonit ist ein selten vorkomm ...... e gemessene Dichte 3,84 g/cm³.
@de
Hibonita]] = oxido motako minerala da eta magnetoplumbite taldearen kidea da.
@eu
Hibonite is a mineral with the ...... al from the Allende meteorite.
@en
La hibonita es un mineral de l ...... el apellido de su descubridor.
@es
La hibonita és un mineral de l ...... tretament relacionada amb la .
@ca
La hibonite è un minerale. Nel ...... nella meteorite di Murchison.
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label
Hibonit
@de
Hibonita
@ca
Hibonita
@es
Hibonita
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Hibonite
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Hibonite
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isPrimaryTopicOf
name
Hibonite
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