1 Astrology
1.1 Origin
Southern and central Africa
Russia
1.2 Color
Colorless, White
Violet, Brown, Violet, Brown
1.3 Streak
1.4 For which Rashi?
Not Available
Sagittarius, Scorpio, Sagittarius, Scorpio, Sagittarius, Scorpio
1.5 Planet
Not Available
Jupiter, Neptune
1.6 Element of Planets
Not Available
Water, Earth, Air
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
1.9 Deities
Not Available
Minerva, Vac
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
Not Available
Healing, Love, Protection
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
2.5 Fracture
Handbook of mineralogy (2001)
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
2.6 Cleavage
None
Good in three directions
2.7 Mohs Hardness
2.8 Chemical Composition
(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
Vitreous
Pearly, Fibrous, Chatoyant
3.2 Pleochroism
Weak: colorless light gray bluish grayAnthony et al
NilArthur Thomas
3.3 Dispersion
3.4 Transparency
3.5 Refractive Index
1.634-1.6561.545-1.560
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
Not Available0.009
0
0.296
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