Origin
Brazil, Southern and central Africa
Switzerland
Color
Blue, Green, Black
Colorless, Yellow, Blue, Reddish, Black, Brown, gray
Streak
White
White
For which Rashi?
Gemini, Sagittarius
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Planet
Jupiter
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Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
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-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.04-3.173.82-3.97
1
7.18
👆🏻
Fracture
Uneven
Subconchoidal, Conchoidal
Cleavage
{001} Indistinct, {???} Indistinct
Perfect on [001] and [011]
Mohs Hardness
5.55.5-6
2
10
👆🏻
Chemical Composition
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
TiO 2Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
-
Adamantine
Pleochroism
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
Weak
Dispersion
0.010.21
0.005
1
👆🏻
Transparency
Transparent, Translucent
Transparent
Refractive Index
1.604-1.6462.488-2.562
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
tetragonal
Birefringence
0.031-0.0360.073
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
Balances digestive system and reduces bloating
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Cardiovascular
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Supports heart health
Respiratory
Excellent
Good
Reproductive
-
-
Digestive
Supports digestive health
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Psychology
Clarity
Clarity
Healing
Emotional healing
Emotional healing
Qualities Associated
Psychic Abilities
-