Origin
Southern and central Africa
Southern and central Africa
Color
Brown, Black, Blue
White, Colorless, Blue, Red, Green, Yellow, Violet
Specific Gravity
2.65
-9999
Fracture
ConchoidalWalter Schumann
-
Mohs Hardness
-9999
-9999
Chemical Composition
SiO 2Ulrich Henn and Claudio C.
-
Pleochroism
Definite: brown reddish-brownWalter Schumann
-
Transparency
Transparent, Translucent
TranslucentWalter Schumann
Refractive Index
1.544-1.553
-9999
Birefringence
0.009
-9999
Clarity
Transparent
TranslucentWalter Schumann
Neurological
Improves digestion and metabolism
-
Cardiovascular
-
Supports heart health
Psychology
Protection
Abundance
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection
Abundance