1 Astrology
1.1 Origin
Southern and central Africa
Not Available, Southern and central Africa
1.2 Color
Brownish, Red, Red, orange
Brown, White, Greenish, gray, Green, Brown, Brownish, White, Greenish, gray, Green, Brown, Brownish
1.3 Streak
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
Not Available
Not Available
1.6 Element of Planets
Not Available
Not Available
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
Not Available
Not Available
1.9 Deities
Not Available
Not Available
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
Not Available
Not Available
1.12 Birthstone
1.12.1 Planetary
Not Available
Not Available
1.12.2 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
Not Available
Not Available
2.2 Solubility
Not Available
Not Available
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
2.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle
2.6 Cleavage
Not Available
{110} Perfect, {???} Distinct, {???} Distinct
2.7 Mohs Hardness
2.5 Chemical Composition
CaZrBAl 9O 18Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
3 Optical Properties
3.1 Luster
Not Available
Vitreous, Pearly
3.2 Pleochroism
Strong dichroism: yellow-brown red to brown-violet (pinkish samples: nearly colorless pale orangy-pink)Herve Nicolas Lazzarelli
When Fe-rich
3.3 Dispersion
4.4 Transparency
4.5 Refractive Index
1.787-1.8161.603-1.690
1
3.25
4.6 Optic Character
4.7 Crystal System
Not Available
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
4.8 Birefringence
0.029Not Available
0
0.296
4.11 Clarity
5 Benefits
5.1 Physical
5.1.1 Neurological
Not Available
Not Available
5.1.2 Cardiovascular
Not Available
Not Available
5.1.3 Respiratory
Not Available
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5.2.1 Reproductive
Not Available
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5.2.2 Digestive
Not Available
Not Available
5.4 Psychology
Not Available
Not Available
5.6 Healing
Not Available
Not Available
5.7 Qualities Associated
Not Available
Not Available