Origin
Southern and central Africa
Brazil, Southern and central Africa, Madagascar, Widespread; best stones come from Brazil.
Color
Blue, Colorless, White
Yellow
Streak
White
-
For which Rashi?
Gemini, Virgo
Scorpio
Planet
-
Jupiter
Element of Planets
Earth
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
Quan Yin
Persephone, Mercury
Not to wear with
-
-
Powers
-
Protection, Psychic Power
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.45-2.582.65
1
7.18
👆🏻
Fracture
Conchoidal
-
Cleavage
None
Indiscernible
Mohs Hardness
3-3.57
2
10
👆🏻
Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO2
Luster
Vitreous
Vitreous
Pleochroism
-
Natural: weak; yellow light yellow.
Dispersion
0.010.01
0.005
1
👆🏻
Transparency
-
Transparent
Refractive Index
1.583-1.6081.544-1.553
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Trigonal
Birefringence
0.0190.009
0
0.296
👆🏻
Clarity
-
Transparent
Physical
Neurological
Aids in mental clarity and focus
Enhances creativity and mental clarity
Cardiovascular
-
Supports heart health
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Calming
Creativity
Healing
Emotional healing
Emotional healing
Qualities Associated
Calming
Abundance