Origin
Brazil, Southern and central Africa
Canada, Australia
Color
Blue, Green, Black
Green
Streak
White
Yellow, Green
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
-
HCl soluble
Durability
-
-
Specific Gravity
3.04-3.173.71
1
7.18
👆🏻
Fracture
Uneven
Uneven
Cleavage
{001} Indistinct, {???} Indistinct
{10 1 1} Good
Mohs Hardness
5.54.5-5
2
10
👆🏻
Chemical Composition
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
(Ni,Mg,Fe++)CO3
Luster
-
Vitreous
Pleochroism
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
-
Dispersion
0.010.05
0.005
1
👆🏻
Transparency
Transparent, Translucent
-
Refractive Index
1.604-1.6461.830
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Trigonal
Birefringence
0.031-0.0360.220
0
0.296
👆🏻
Clarity
Transparent
-
Physical
Neurological
Balances digestive system and reduces bloating
-
Cardiovascular
-
-
Respiratory
Excellent
Excellent
Reproductive
-
-
Digestive
Supports digestive health
-
Psychology
Clarity
Positivity
Healing
Emotional healing
-
Qualities Associated
Psychic Abilities
Healing