1 Astrology
1.1 Origin
Brazil
Canada, USA, Mexico, Madagascar, Australia, Not Available, Finland, India, Russia, Yellow, blue, Orange
1.2 Color
White, Blue, Yellow, Brown, Green, Brownish, Greenish, gray
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
Not Available
Not Available
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
2.65-2.902.69-2.72
1
7.18
2.5 Fracture
Gemstones (2009), Flexible Flexible fragments.
Uneven, Conchoidal, Gems, Sixth Edition (2006)
2.6 Cleavage
{001} Perfect
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
2.7 Mohs Hardness
2.8 Chemical Composition
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Na,Ca)1-2Si3-2O8
3 Optical Properties
3.1 Luster
3.2 Pleochroism
NilArthur Thomas
From the Congo
3.3 Dispersion
3.4 Transparency
Translucent
Transparent, Translucent, Transparent to translucent
3.5 Refractive Index
1.534-1.6011.554-1.573
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
3.9 Clarity
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