Color
Colorless, Greenish, White, Yellow
Yellow, pink
Specific Gravity
2.90
3.05-3.08
Fracture
Conchoidal
Subconchoidal, Uneven, Conchoidal
Cleavage
None
Poor on {100}
Chemical Composition
CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Vitreous, Resinous
Pleochroism
-
Visible: X = yellow; Y = pink; Z = pale pink to colorless
Transparency
Transparent
Transparent
Refractive Index
1.595-1.604
1.639-1.672
Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Orthorhombic
Birefringence
0.009
0.029-0.032
Clarity
Transparent
Transparent
Neurological
Enhances mental clarity and focus
-
Respiratory
Excellent
Good
Psychology
Optimism
Compassion
Healing
Emotional healing
Emotional healing
Qualities Associated
Optimism
Heart Healing