Origin
Brazil, Southern and central Africa
Southern and central Africa
Color
Blue, Green, Black
Blue, Grey
Streak
White
-
For which Rashi?
Gemini, Sagittarius
-
Planet
Jupiter
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Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.04-3.172.58-2.64
1
7.18
👆🏻
Fracture
Uneven
-
Cleavage
{001} Indistinct, {???} Indistinct
-
Mohs Hardness
5.57
2
10
👆🏻
Chemical Composition
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
SiO 2Walter Schumann , Gemstones of the world (2001)
Luster
-
-
Pleochroism
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
-
Dispersion
0.010.05
0.005
1
👆🏻
Transparency
Transparent, Translucent
-
Refractive Index
1.604-1.6461.534-1.540
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
-
Birefringence
0.031-0.036-9999
0
0.296
👆🏻
Clarity
Transparent
-
Physical
Neurological
Balances digestive system and reduces bloating
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Cardiovascular
-
Aids in digestion and soothes the stomach
Respiratory
Excellent
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Reproductive
-
-
Digestive
Supports digestive health
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Psychology
Clarity
Protection
Healing
Emotional healing
Emotional healing
Qualities Associated
Psychic Abilities
Protection