Origin
Italy
Southern and central Africa
Color
Red, Reddish, Brown, Black, Yellow
Colorless, White, gray, Brown, pink
Specific Gravity
-9999
3.05-3.08
Fracture
Uneven, Splintery
Uneven, Irregular, Conchoidal
Cleavage
[001] good, [100] distinct
None
Chemical Composition
Ca2Al3(SiO4)(Si2O7)O(OH)
Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)
Transparency
-
Semitransparent
Refractive Index
1.725-1.756
-9999
Crystal System
monoclinic
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: I a3d
Birefringence
0.025-0.076
-9999
Clarity
-
TranslucentAnthony et al
Cardiovascular
-
Supports heart health
Psychology
Spiritual growth
Empathy
Healing
Emotional healing
Emotional healing
Qualities Associated
Balance
Emotional Healing