Origin
Canada, Madagascar, Southern and central Africa, Sri Lanka, USA
Southern and central Africa
Specific Gravity
2.56-2.66
3.62-3.80
Fracture
Uneven, ConchoidalWalter Schumann
Conchoidal
Mohs Hardness
7-7.5
7-7.5
Chemical Composition
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
Mg 3(Al,Cr) 2(SiO 4) 3Gemdat.org , Management Team (2012)
Pleochroism
Strong trichroism: colorless to yellowish
-
Transparency
Transparent
-
Refractive Index
1.542-1.578
1.720-1.740
Optic Character
Biaxial/+
-
Birefringence
0.008-0.012
-9999
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Cardiovascular
-
Supports heart health
Psychology
Inner vision
Passion
Healing
Emotional healing
Emotional healing
Qualities Associated
Intuition
Passion