Origin
Brazil, Southern and central Africa
Southern and central Africa
Color
Blue, Green, Black
Red, Yellow, Brownish, White, Reddish, Greenish, orange
Streak
White
Grey, Yellow, gray
For which Rashi?
Gemini, Sagittarius
-
Planet
Jupiter
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
Brittle
Solubility
-
Soluble
Durability
-
-
Specific Gravity
3.04-3.173.10-3.20
1
7.18
👆🏻
Fracture
Uneven
Uneven, Conchoidal
Cleavage
{001} Indistinct, {???} Indistinct
Poor to good on (001)
Mohs Hardness
5.56-6.5
2
10
👆🏻
Chemical Composition
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
(Mg,Fe) 5(SiO 4) 2(F,OH) 2Ulrich Henn and Claudio C.
Luster
-
Vitreous, Greasy
Pleochroism
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
X golden yellow to orange
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
Transparent, Translucent
Transparent, Translucent
Refractive Index
1.604-1.6461.589-1.670
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
monoclinic
Birefringence
0.031-0.0360.027-0.032
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
Balances digestive system and reduces bloating
-
Cardiovascular
-
Supports heart health
Respiratory
Excellent
Good
Reproductive
-
-
Digestive
Supports digestive health
-
Psychology
Clarity
Self-acceptance
Healing
Emotional healing
Emotional healing
Qualities Associated
Psychic Abilities
Emotional Balance