Origin
Ethiopia, Mexico, Honduras, Guatemala, Brazil, USA, Canada, Madagascar, Tanzania, Czech, Slovakia
Canada
Color
Black, Red
Yellow, Brown, Red, White, Green, Reddish, Black
Specific Gravity
-9999
3.89-4.18
Fracture
-
Conchoidal, Uneven
Cleavage
None
{0001}, {11 2 0} imperfect
Mohs Hardness
5.5-6.5
5.5
Chemical Composition
SiO2*nH2O
Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
-
Vitreous, Resinous
Transparency
-
Transparent, Translucent
Refractive Index
1.42-1.47
1.687-1.723
Crystal System
-
Trigonal
Birefringence
-9999
0.028-0.030
Neurological
Enhances mental clarity and focus
-
Psychology
Creativity
Optimism
Healing
Emotional healing
-
Qualities Associated
Joy
Transformation