Origin
Brazil
Southern and central Africa
Color
Green, Colorless, Greenish, Yellow
Green
Streak
White
Greenish, White
Specific Gravity
2.98-2.99
2.9
Fracture
Conchoidal
Conchoidal
Cleavage
(010) Distinct to good
{???} Indistinct
Chemical Composition
NaAl 3(PO 4) 2(OH) 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Pleochroism
Very weakWalter Schumann
-
Transparency
-
Translucent
Refractive Index
1.602-1.625
1.612
Crystal System
monoclinic
Triclinic Pinacoidal H-M Symbol ( 1) Space Group: P1
Birefringence
0.019-0.021
-9999
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent
Psychology
Empowerment
Healing
Healing
Emotional healing
Emotional healing
Qualities Associated
Manifestation
Healing