Other Definitions
axinite (dict)

Axinite

olspan=2 align=center | Axinite
olspan=2| Image required
olspan=2|General
ategory Mineral
a href="/encyclopedia/Chemical-formula" title="Chemical formula">Chemical formula calcium aluminum boro-silicate, (Ca,Fe,Mn)3Al2BO3Si4O12OH or Ca2(Fe,Mn)Al2BSi4O15(OH)
olspan=2|Identification
Colour Reddish brown to yellow to colorless. Blue, violet, grey.
Crystal habit Tabular, wedge shaped crystal
Crystal system Triclinic
Cleavage Good
Fracture Conchoidal
Mohs Scale hardness 6.5-7
Luster Vitreous
Refractive index 1.68-1.723
Pleochroism Strong
Streak White
Specific gravity 3.26-3.41
Fusibility ?
Solubility ?
olspan=2|Major varieties
olspan=2| None
Axinite is a blue, violet-blue, brownish or reddish-brown mineral composed of calcium aluminum boro-silicate, (Ca,Fe,Mn)3Al2BO3Si4O12OH. Axinite is pyroelectric and piezoelectric

 

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