Origin
Brazil, Southern and central Africa
Southern and central Africa
Color
Blue, Green, Black
Blue, 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
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.04-3.172.64-2.70
1
7.18
👆🏻
Fracture
Uneven
-
Cleavage
{001} Indistinct, {???} Indistinct
{010} Perfect
Mohs Hardness
5.5-9999
2
10
👆🏻
Chemical Composition
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Luster
-
Vitreous, Pearly
Pleochroism
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael OâDonoghue
Dispersion
0.010.03
0.005
1
👆🏻
Transparency
Transparent, Translucent
Transparent
Refractive Index
1.604-1.6461.560-1.640
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
-
Birefringence
0.031-0.0360.054-0.075
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
Balances digestive system and reduces bloating
Enhances mental clarity and focus
Cardiovascular
-
-
Respiratory
Excellent
Good
Reproductive
-
-
Digestive
Supports digestive health
-
Psychology
Clarity
Hope
Healing
Emotional healing
Emotional healing
Qualities Associated
Psychic Abilities
Transformation