Origin
Brazil
Sri Lanka, Burma, USA, Russia
Color
Yellow, White, Brown, Brownish, Black
Yellow, Brown, pink, Colorless
Streak
Brown, Yellow, 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
Soluble
-
Durability
-
-
Specific Gravity
3.06-3.253.46-3.50
1
7.18
👆🏻
Fracture
Sub-Conchoidal, Conchoidal, Uneven
Conchoidal
Cleavage
Poor/indistinct on {100}
Perfect
Mohs Hardness
4.5-56-7
2
10
👆🏻
Chemical Composition
(Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Resinous
-
Pleochroism
visible
Trichroism: green light brown dark brownHerve Nicolas Lazzarelli
Dispersion
0.030.02
0.005
1
👆🏻
Transparency
Transparent
-
Refractive Index
1.639-1.6721.665-1.712
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.027-0.0420.036-0.042
0
0.296
👆🏻
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
-
-
Cardiovascular
Enhances mental clarity
-
Respiratory
Excellent
Good
Reproductive
-
-
Digestive
-
-
Psychology
Creativity
Intuition
Healing
Emotional healing
Emotional healing
Qualities Associated
Joy
Emotional Healing