1 Astrology
1.1 Origin
Southern and central Africa
Canada, USA, Mexico, Madagascar, Australia, Not Available, Finland, India, Russia, Yellow, blue, Orange
1.2 Color
Greenish, Blue, Colorless, Green, Yellow
Violet, Colorless, gray, White, Green
1.3 Streak
1.4 For which Rashi?
1.5 Planet
Not Available
Not Available
1.6 Element of Planets
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
Not Available
Not Available
1.9 Deities
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
Not Available
Protection, Psychic Power
1.12 Birthstone
1.12.1 Planetary
Not Available
Not Available
1.12.2 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
Not Available
Not Available
2.2 Solubility
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
3.17-3.242.69-2.72
1
7.18
2.5 Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
Uneven, Conchoidal, Gems, Sixth Edition (2006)
2.6 Cleavage
(0001) indistinct
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
2.7 Mohs Hardness
2.8 Chemical Composition
SiCArthur Thomas , Gemstones (2009)
(Na,Ca)1-2Si3-2O8
3 Optical Properties
3.1 Luster
Adamantine
Vitreous, Pearly
3.2 Pleochroism
NilArthur Thomas
From the Congo
3.3 Dispersion
3.4 Transparency
Gemmological Tables (2004) More from other references
Transparent, Translucent, Transparent to translucent
3.5 Refractive Index
2.648-2.6911.554-1.573
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
3.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
Not Available
4.1.2 Cardiovascular
Not Available
Not Available
4.1.3 Respiratory
Not Available
Not Available
4.1.4 Reproductive
Not Available
Not Available
4.1.5 Digestive
Not Available
Not Available
4.2 Psychology
Not Available
Not Available
4.3 Healing
Not Available
Not Available
4.4 Qualities Associated
Not Available
Not Available