Color
Colorless, White, Green, Brown
Green, Yellow, Black
Solubility
Easily soluble in cold dilute HCl
-
Specific Gravity
4.12
3.745-3.776
Fracture
Uneven
Conchoidal
Cleavage
Good in two directions parallel to the prism faces {110}
Perfect on {010}, fair on {101}
Mohs Hardness
4-4.5
3-3.5
Chemical Composition
CaZn(AsO4)(OH)
Cu2Cl(OH)3
Luster
Subadamantine, Silky
Adamantine, Vitreous
Pleochroism
-
X = pale green; Y = yellow-green; Z = grass-green
Refractive Index
1.759
1.831
Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.024
0.049
Psychology
Compassion
Transformation
Healing
Emotional healing
Physical healing
Qualities Associated
Transformation
Healing