Origin
Southern and central Africa
Brazil, Colombia, Southern and central Africa
Color
Green, Grey, White
Greenish, Blue, Colorless, White, Green
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
2.60-3.023.08-3.12
1
7.18
👆🏻
Fracture
Uneven
ConchoidalWalter Schumann
Cleavage
{001} Perfect
{010} Perfect
Mohs Hardness
2-2.57.5
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ ) 5Al(Si 3Al)O 10(OH) 8Anthony et al , Handbook of mineralogy (2001)
BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Pearly, Greasy
Vitreous
Pleochroism
Distinct: light yellow-green to light bluE
Weak: colorless-(greenish) yellow
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent
-
Refractive Index
1.571-1.5971.650-1.677
1
3.25
👆🏻
Optic Character
Biaxial/+
-
Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
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 mental clarity and focus
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Harmony
Harmony
Healing
Physical healing
Emotional healing
Qualities Associated
Emotional Healing
Communication