Origin
Australia
Southern and central Africa
Color
Red
Green, Grey, White
Streak
White, Colorless
White
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
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Energy
Not Available
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Finger
Not Available
Not Available
Ring Metal
Not Available
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Deities
Not Available
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Not to wear with
Not Available
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Powers
Not Available
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Planetary
Not Available
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Talisman
Not Available
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Tenacity
Not Available
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Solubility
Not Available
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Durability
Not Available
Not Available
Specific Gravity
3.1
2.60-3.02
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Uneven
Cleavage
Perfect {010} imperfect {100}
{001} Perfect
Chemical Composition
Ca2Al3(SiO4)3(OH)
(Mg,Fe2+ ) 5Al(Si 3Al)O 10(OH) 8Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous
Pearly, Greasy
Pleochroism
Present
Distinct: light yellow-green to light bluE
Dispersion
Not Available
Not Available
Transparency
Opaque, Translucent, Opaque . May be translucent in thin backlit sections.
Transparent
Refractive Index
1.695
1.571-1.597
Optic Character
Not Available
Biaxial/+
Crystal System
Orthorhombic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
Birefringence
0.006-0.018
Not Available
Clarity
OpaqueHerve Nicolas Lazzarelli
Transparent
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
Not Available
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Reproductive
Not Available
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Digestive
Not Available
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Psychology
Not Available
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Healing
Not Available
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Qualities Associated
Not Available
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