Origin
Southern and central Africa
-
Color
Blue, Grey
Green, Pale pink, White, rose, gray, Greenish, Yellow
Specific Gravity
2.58-2.64
3.07
Cleavage
-
Perfect on {010}, indistinct on {100} and {102}
Chemical Composition
SiO 2Walter Schumann , Gemstones of the world (2001)
Ni3(AsO4)2•8(H2O)
Luster
-
Subadamantine, Pearly
Refractive Index
1.534-1.540
1.622
Crystal System
-
monoclinic
Birefringence
-9999
0.065
Cardiovascular
Aids in digestion and soothes the stomach
-
Psychology
Protection
Harmony
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection
Healing