Origin
-
Southern and central Africa
Color
Brown, Colorless, Brownish, Black, Green, Greenish
Blue, Colorless, White
Streak
White
White
For which Rashi?
-
Gemini, Virgo
Planet
-
-
Element of Planets
-
Earth
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
Quan Yin
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.5-6.02.45-2.58
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
{001} Distinct
None
Mohs Hardness
6.53-3.5
2
10
👆🏻
Chemical Composition
ZrO 2Arthur Thomas , Gemstones (2009)
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Adamantine
Vitreous
Pleochroism
DistinctArthur Thomas
-
Dispersion
0.040.01
0.005
1
👆🏻
Transparency
Transparent
-
Refractive Index
2.13-2.201.583-1.608
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/c
monoclinic
Birefringence
0.070.019
0
0.296
👆🏻
Clarity
Transparent
-
Physical
Neurological
-
Aids in mental clarity and focus
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
-
Calming
Healing
-
Emotional healing
Qualities Associated
-
Calming