Origin
Brazil, Southern and central Africa
Italy
Color
Blue, Green, Black
Green, gray, Brown, Black
Streak
White
Greenish, 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
3.04-3.172.58-2.80
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
{001} Indistinct, {???} Indistinct
{001} Good
Mohs Hardness
5.55-5.5
2
10
👆🏻
Chemical Composition
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
Luster
-
Waxy, Silky, Resinous, Greasy
Pleochroism
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
pale greenish yellow
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
Transparent, Translucent
Translucent
Refractive Index
1.604-1.6461.530-1.575
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Monoclinic Domatic H-M Symbol (m) Space Group: Cm
Birefringence
0.031-0.036-9999
0
0.296
👆🏻
Clarity
Transparent
Translucent
Physical
Neurological
Balances digestive system and reduces bloating
Supports neurological health
Cardiovascular
-
Supports heart health
Respiratory
Excellent
Good
Reproductive
-
-
Digestive
Supports digestive health
-
Psychology
Clarity
Harmony
Healing
Emotional healing
Emotional healing
Qualities Associated
Psychic Abilities
Emotional Healing