Origin
Colombia, Origins: Congo
Pakistan
Color
Red, Yellow, White, gray, Green, Colorless
White, Green, Blue, Yellow, Brownish, Red, gray
Specific Gravity
2.65-2.69
2.39
Fracture
Uneven, Conchoidal
Irregular
Cleavage
Perfect on {001}, good on {010}
Perfect on {0001}
Chemical Composition
(Na,Ca)Al1-2Si3-2O8
Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Vitreous, Pearly
Transparency
Transparent, Translucent, Transparent to translucent
TransparentMichael OâDonoghue
Refractive Index
1.543-1.564
1.56-1.60
Optic Character
Biaxial/+
-
Crystal System
Triclinic
Trigonal
Birefringence
0.007-0.011
0.010-0.020
Clarity
Transparent
TransparentMichael OâDonoghue
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
-
Digestive
-
Supports digestive health
Psychology
Vitality
Peace
Healing
Emotional healing
Emotional healing
Qualities Associated
Vitality
Peace