1 Astrology
1.2 Origin
Australia, Spain, Brazil, Germany, Australia, Spain, Brazil, Germany, Australia, Spain, Brazil
Southern and central Africa
1.4 Color
Green, Blue, Colorless
Yellow, Blue, Colorless, Yellow, White
1.5 Streak
1.6 For which Rashi?
2.2 Planet
Not Available
Not Available
2.4 Element of Planets
2.6 How to Wear?
2.6.1 Finger
Not Available
Not Available
2.7.1 Ring Metal
Not Available
Not Available
2.8 Energy
2.9 Deities
Past Life Recall
Not Available
2.10 Not to wear with
Not Available
Not Available
2.11 Powers
Not Available
Not Available
2.12 Birthstone
2.12.1 Planetary
Not Available
Not Available
2.12.2 Talisman
Not Available
Not Available
3 Physical Properties
3.1 Tenacity
Not Available
Not Available
3.2 Solubility
Not Available
Not Available
3.3 Durability
Not Available
Not Available
3.4 Specific Gravity
2.42-2.583.28-3.31
1
7.18
4.4 Fracture
Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
4.5 Cleavage
[010] perfect
None observed
4.6 Mohs Hardness
4.9 Chemical Composition
AlPO4 · 2(H2O)
Al 6B 5O 15(F,OH) 3Ulrich Henn and Claudio C.
5 Optical Properties
5.1 Luster
5.2 Pleochroism
MissingWalter Schumann
Colorless
5.3 Dispersion
6.5 Transparency
Translucent, Opaque . May be translucent when backlit on the edges.
Gemmological Tables (2004) More from other references
6.6 Refractive Index
1.560-1.5941.638-1.650
1
3.25
6.7 Optic Character
Not Available
Not Available
6.8 Crystal System
6.9 Birefringence
6.10 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda
7 Benefits
7.1 Physical
7.1.1 Neurological
Not Available
Not Available
7.1.2 Cardiovascular
Not Available
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7.1.3 Respiratory
Not Available
Not Available
7.1.4 Reproductive
Not Available
Not Available
7.1.5 Digestive
Not Available
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7.2 Psychology
Not Available
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7.3 Healing
Not Available
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7.4 Qualities Associated
Not Available
Not Available