Origin
Brazil, Southern and central Africa
Colombia, Origins: Congo
Color
Blue, Green, Black
Red, Yellow, White, gray, Green, Colorless
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
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.04-3.172.65-2.69
1
7.18
👆🏻
Fracture
Uneven
Uneven, Conchoidal
Cleavage
{001} Indistinct, {???} Indistinct
Perfect on {001}, good on {010}
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
(Na,Ca)Al1-2Si3-2O8
Luster
-
Vitreous
Pleochroism
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
colorless.
Dispersion
0.010.70
0.005
1
👆🏻
Transparency
Transparent, Translucent
Transparent, Translucent, Transparent to translucent
Refractive Index
1.604-1.6461.543-1.564
1
3.25
👆🏻
Optic Character
-
Biaxial/+
Crystal System
monoclinic
Triclinic
Birefringence
0.031-0.0360.007-0.011
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
Balances digestive system and reduces bloating
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Respiratory
Excellent
Good
Reproductive
-
-
Digestive
Supports digestive health
-
Psychology
Clarity
Vitality
Healing
Emotional healing
Emotional healing
Qualities Associated
Psychic Abilities
Vitality