Origin
Brazil, Southern and central Africa
Austria, Brazil, Canada, India, Madagascar, Russia, Sri Lanka, USA
Color
Blue, Green, Black
Red, Brown, Brownish, Black
Streak
White
White
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
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.04-3.173.95-4.30
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
{001} Indistinct, {???} Indistinct
none
Mohs Hardness
5.57-7.5
2
10
👆🏻
Chemical Composition
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Luster
-
Greasy, Vitreous
Pleochroism
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
None
Dispersion
0.010.03
0.005
1
👆🏻
Transparency
Transparent, Translucent
-
Refractive Index
1.604-1.6461.770-1.820
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
cubic
Birefringence
0.031-0.036-9999
0
0.296
👆🏻
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
Balances digestive system and reduces bloating
-
Cardiovascular
-
-
Respiratory
Excellent
Good
Reproductive
-
Supports reproductive health
Digestive
Supports digestive health
-
Psychology
Clarity
Strength
Healing
Emotional healing
Emotional healing
Qualities Associated
Psychic Abilities
Devotion