Origin
Southern and central Africa
Brazil, Colombia, Southern and central Africa
Color
Brown, White, Greenish, gray, Green, Brownish
Greenish, Blue, Colorless, White, Green
Streak
gray
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
2.9-3.53.08-3.12
1
7.18
👆🏻
Fracture
Conchoidal
ConchoidalWalter Schumann
Cleavage
{110} Perfect, {???} Distinct, {???} Distinct
{010} Perfect
Mohs Hardness
5.5-67.5
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Pearly
Vitreous
Pleochroism
-
Weak: colorless-(greenish) yellow
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
Transparent
-
Refractive Index
1.603-1.6901.650-1.677
1
3.25
👆🏻
Optic Character
Biaxial/+
-
Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Birefringence
-99990.019-0.025
0
0.296
👆🏻
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
Enhances brain function
Enhances mental clarity and focus
Cardiovascular
Supports heart health
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Peace
Harmony
Healing
Emotional healing
Emotional healing
Qualities Associated
Self-discovery
Communication