Origin
Southern and central Africa
-
Color
Red
Blue, Green
Streak
-
Blue
For which Rashi?
Aries
Sagittarius, Capricorn
Planet
Mars
Venus
Element of Planets
-
Water
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
Black Madonna, Isis
-
Not to wear with
-
-
Powers
Courage
Psychic Power
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
2.63-2.653.70-3.90
1
7.18
👆🏻
Fracture
-
Conchoidal
Cleavage
Indiscernible
Perfect on {011}, fair on {100}, poor on {110}
Mohs Hardness
73.5-4
2
10
👆🏻
Chemical Composition
SiO2
Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous
Pleochroism
-
Visible shades of blue
Dispersion
0.010.03
0.005
1
👆🏻
Transparency
Opaque
Transparent, Translucent
Refractive Index
1.54-1.551.720-1.850
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Trigonal
monoclinic
Birefringence
-99990.108
0
0.296
👆🏻
Clarity
Opaque
Transparent
Physical
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Good
Excellent
Reproductive
-
Supports reproductive health
Digestive
-
-
Psychology
Courage
Insight
Healing
Physical healing
Emotional healing
Qualities Associated
Detoxification
Insight