Origin
Brazil, Southern and central Africa
Tanzania, Madagascar, Kenya, Sri Lanka, Burma, Australia
Color
Blue, Green, Black
Green, Brown, Colorless, Greenish, Yellow
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
3.04-3.173.25-3.45
1
7.18
👆🏻
Fracture
Uneven
Conchoidal, Uneven
Cleavage
{001} Indistinct, {???} Indistinct
Good on {110}
Mohs Hardness
5.56.5
2
10
👆🏻
Chemical Composition
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Luster
-
Vitreous
Pleochroism
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
X = colorless to green; Y = colorless
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
Transparent, Translucent
-
Refractive Index
1.604-1.6461.660-1.685
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Orthorhombic
Birefringence
0.031-0.0360.012-0.017
0
0.296
👆🏻
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
Balances digestive system and reduces bloating
-
Cardiovascular
-
-
Respiratory
Excellent
-
Reproductive
-
-
Digestive
Supports digestive health
-
Psychology
Clarity
Harmony
Healing
Emotional healing
Emotional healing
Qualities Associated
Psychic Abilities
Self-worth