Color
Red, Reddish, Violet, Blue, Green, Colorless, pink
White, Brown, pink
Specific Gravity
2.74-2.76
3.396-3.443
Cleavage
{010} Perfect, {001} Distinct
[001] good, [100] and [110] fair
Chemical Composition
Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous
Vitreous, Resinous, Greasy
Pleochroism
Pale rose-red carmine-red colorlessAnthony et al
-
Transparency
Transparent
-
Refractive Index
1.692-1.739
1.672
Crystal System
-
tetragonal
Birefringence
0.240
-9999
Cardiovascular
-
Soothes the digestive system
Psychology
Heart opening
Self-acceptance
Healing
Emotional healing
Emotional healing
Qualities Associated
Heart Healing
Awareness