Origin
Southern and central Africa, Sri Lanka, blue, India, brown, green, Orange, Sri Lanka, blue, India, brown, green, Orange
Sri Lanka
Color
White, Green, Brownish
Blue
Streak
White
Not Available
For which Rashi?
Cancer, Libra, Scorpio, Cancer, Libra, Scorpio, Cancer, Libra, Scorpio
Sagittarius, Scorpio
Element of Planets
Water
Not Available
Energy
Receptive
Projective
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Not to wear with
Not Available
Not Available
Planetary
Cancer
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.56-2.60
3.65-4.55
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
None, but may exhibit slight parting
Mohs Hardness
6-6.5
7.5-8
Chemical Composition
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Pleochroism
AbsentWalter Schumann
AbsentWalter Schumann
Dispersion
None
Not Available
Transparency
Transparent, Transparent to translucent
Gemmological Tables (2004)
Refractive Index
1.518-1.527
1.735-1.790
Optic Character
Not Available
Not Available
Crystal System
monoclinic
Isometric
Birefringence
0.006-0.007
Not Available
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
Not Available
Not Available
Cardiovascular
Not Available
Not Available
Respiratory
Not Available
Not Available
Reproductive
Not Available
Not Available
Digestive
Not Available
Not Available
Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available