1 Astrology
1.1 Origin
Russia
Not Available, Southern and central Africa
1.2 Color
Violet, Brown, Violet, Brown
Violet, Black
1.3 Streak
White
gray, White, gray, White
1.4 For which Rashi?
Sagittarius, Scorpio, Sagittarius, Scorpio, Sagittarius, Scorpio
Not Available
1.5 Planet
Jupiter, Neptune
Not Available
1.6 Element of Planets
Water, Earth, Air
Not Available
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
Minerva, Vac
Not Available
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
Healing, Love, Protection
Not Available
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
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Handbook of mineralogy (2001)
2.6 Cleavage
Good in three directions
None
2.7 Mohs Hardness
2.8 Chemical Composition
K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
3 Optical Properties
3.1 Luster
Pearly, Fibrous, Chatoyant
Vitreous
3.2 Pleochroism
NilArthur Thomas
Strong: pale lavender dark blueAnthony et al
3.3 Dispersion
3.4 Transparency
Translucent
TranslucentAnthony et al, Translucent
3.5 Refractive Index
1.545-1.560Not Available
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
Triclinic
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
3.8 Birefringence
0.009Not Available
0
0.296
3.9 Clarity
Translucent
TranslucentAnthony et al
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