Origin
Mexico
Southern and central Africa
Color
Colorless, Violet, White
Colorless, White, gray, Brown, pink
Specific Gravity
2.70
3.05-3.08
Fracture
Uneven, Conchoidal
Uneven, Irregular, Conchoidal
Cleavage
Perfect on {100}
None
Chemical Composition
Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)
Transparency
Transparent, Translucent
Semitransparent
Refractive Index
1.461-1.485
-9999
Crystal System
monoclinic
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: I a3d
Birefringence
0.024
-9999
Clarity
Transparent
TranslucentAnthony et al
Cardiovascular
Supports heart health
Supports heart health
Psychology
Spiritual growth
Empathy
Healing
Emotional healing
Emotional healing
Qualities Associated
Spiritual Connection
Emotional Healing