Origin
-
Brazil, Southern and central Africa
Color
Black, Blue, Yellow, Green
Blue, Green, Black
Streak
Grey, Greenish, Brown
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
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.28-3.443.04-3.17
1
7.18
👆🏻
Fracture
Uneven, Splintery
Uneven
Cleavage
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
{001} Indistinct, {???} Indistinct
Mohs Hardness
5.0-6.05.5
2
10
👆🏻
Chemical Composition
Na2Fe2+3Fe3+2Si8O22(OH)2
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Luster
Vitreous, Silky
-
Pleochroism
X = blue
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
-
Transparent, Translucent
Refractive Index
1.680-1.6981.604-1.646
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
monoclinic
Birefringence
0.005-0.0080.031-0.036
0
0.296
👆🏻
Clarity
-
Transparent
Physical
Neurological
Enhances mental clarity and focus
Balances digestive system and reduces bloating
Cardiovascular
Supports heart health
-
Respiratory
Good
Excellent
Reproductive
-
-
Digestive
-
Supports digestive health
Psychology
Empowerment
Clarity
Healing
Emotional healing
Emotional healing
Qualities Associated
Clear Thinking
Psychic Abilities