Origin
USA
Southern and central Africa, Burma, Tanzania, India, Sri Lanka
Color
Red, Reddish, Violet, Blue, Green, Colorless, pink
Yellow, White, Green, Brown, Greenish, gray
Specific Gravity
2.74-2.76
3.20-3.25
Fracture
Uneven
Uneven, Conchoidal
Cleavage
{010} Perfect, {001} Distinct
Good/distinct on [210]
Chemical Composition
Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
Mg 2Si 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous, Pearly
Pleochroism
Pale rose-red carmine-red colorlessAnthony et al
Pale green to pale orange
Transparency
Transparent
Transparent, Translucent
Refractive Index
1.692-1.739
1.650-1.680
Crystal System
-
Orthorhombic
Birefringence
0.240
0.009-0.011
Clarity
Transparent
Transparent
Psychology
Heart opening
Grounding
Healing
Emotional healing
Emotional healing
Qualities Associated
Heart Healing
Grounding