Origin
-
Southern and central Africa
Color
Green, Colorless, gray, White
Brown, Colorless, Green
Specific Gravity
3.05-3.37
3.14-3.25
Cleavage
Good on (110)
Perfect
Chemical Composition
NaCa2Mg5Si7AlO22(OH)2
Al 2SiO 5Arthur Thomas , Gemstones (2009)
Pleochroism
Distinct
DistinctArthur Thomas
Transparency
-
Transparent
Refractive Index
1.606-1.649
1.658-1.678
Crystal System
monoclinic
-
Birefringence
-9999
-9999
Digestive
-
Aids in digestion and nutrient absorption
Psychology
Spiritual growth
Focus
Healing
Emotional healing
Emotional healing
Qualities Associated
Transformation
-