Color
Colorless, Brownish
Yellow
Streak
White
Greenish, Black, Brownish
Solubility
Nearly insoluble in HCl and HNO3
insoluble in water
Specific Gravity
2.97
5.00-5.20
Fracture
Conchoidal
Uneven, Conchoidal, ConchoidalWalter Schumann
Cleavage
Distinct on {010}
Indistinct on {001}; partings on {011} and {111}
Chemical Composition
-
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Greasy, Vitreous, Pearly
-
Pleochroism
(x): colorless. (y): colorless. (z): colorless.
-
Transparency
-
OpaqueHerve Nicolas Lazzarelli
Refractive Index
1.607
-9999
Crystal System
monoclinic
Isometric
Birefringence
-9999
-9999
Clarity
-
OpaqueHerve Nicolas Lazzarelli
Cardiovascular
-
Supports heart health
Healing
Physical healing
Physical healing
Qualities Associated
Protection
Abundance