Origin
Brazil
Sri Lanka
Color
Blue, Greenish
Red, Blue, Green, Brown, Black
Streak
White
White
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.313.63-3.9
1
7.18
👆🏻
Fracture
Uneven
Conchoidal, Uneven
Cleavage
{110} Good
Indistinct
Mohs Hardness
5.5-67.5-8
2
10
👆🏻
Chemical Composition
(Fe2+ ,Mg)Al 2(PO 4) 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
(Mg,Fe2+ )Al 2O 4Gemdat.org , Management Team (2012) More from other references
Luster
-
Vitreous
Pleochroism
Colorless blueAnthony et al
Absent
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
-
Transparent, Translucent
Refractive Index
1.639-1.6801.770-1.780
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
Isometric
Birefringence
0.041-9999
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Physical
Neurological
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-
Cardiovascular
-
Supports heart health
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Communication
Creativity
Healing
Emotional healing
Emotional healing
Qualities Associated
Intuition & Communication
Emotional Healing