Origin
Brazil, Southern and central Africa
Southern and central Africa
Color
Blue, Green, Black
Blue, Green, Brown
Streak
White
White, Blue, Green
For which Rashi?
Gemini, Sagittarius
Taurus
Planet
Jupiter
Venus
Element of Planets
-
Water
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
Venus
Not to wear with
-
-
Powers
-
Love
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.04-3.172.00-2.45
1
7.18
👆🏻
Fracture
Uneven
Sub-Conchoidal, Conchoidal
Cleavage
{001} Indistinct, {???} Indistinct
none
Mohs Hardness
5.52-4
2
10
👆🏻
Chemical Composition
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Cu2H2Si2O5(OH)4
Luster
-
Vitreous, Greasy
Pleochroism
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
-
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
Transparent, Translucent
Opaque
Refractive Index
1.604-1.6461.460-1.570
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
monoclinic
Birefringence
0.031-0.0360.023-0.050
0
0.296
👆🏻
Clarity
Transparent
-
Physical
Neurological
Balances digestive system and reduces bloating
Promotes calmness and emotional balance
Cardiovascular
-
Supports heart health
Respiratory
Excellent
Good
Reproductive
-
-
Digestive
Supports digestive health
-
Psychology
Clarity
Communication
Healing
Emotional healing
Emotional healing
Qualities Associated
Psychic Abilities
Communication