Origin
Brazil, Southern and central Africa
Southern and central Africa
Color
Blue, Green, Black
Red, Blue, Green, Reddish, Brown
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
3.04-3.173.79-3.94
1
7.18
👆🏻
Fracture
Uneven
Lamellar, Splintery
Cleavage
{001} Indistinct, {???} Indistinct
{100} Good, {001} Good, {010} Poor
Mohs Hardness
5.54
2
10
👆🏻
Chemical Composition
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
FeAs
Luster
-
Waxy
Pleochroism
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
-
Dispersion
0.010.01
0.005
1
👆🏻
Transparency
Transparent, Translucent
TranslucentAnthony et al
Refractive Index
1.604-1.6461.670-1.734
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
-
Birefringence
0.031-0.036-9999
0
0.296
👆🏻
Clarity
Transparent
TranslucentAnthony et al
Physical
Neurological
Balances digestive system and reduces bloating
-
Cardiovascular
-
-
Respiratory
Excellent
-
Reproductive
-
-
Digestive
Supports digestive health
-
Psychology
Clarity
-
Healing
Emotional healing
-
Qualities Associated
Psychic Abilities
Emotional Healing