Pigeonite | |
Chemical Formula |
(Ca,Mg,Fe)(Mg,Fe)Si2O6 |
Species |
Silicates |
Crystal System |
Monoclinic |
Mohs Scale |
6 |
Specific Gravity |
3.17-3.46 |
Color |
Brown, greenish brown-black |
Streak |
Grey white |
Luster |
Vitreous, Dull |
Refractive Index |
n = 1.683 - 1.722 n = 1.684 - 1.722 n = 1.704 - 1.752 |
Diaphaneity |
Semitransparent |
Cleavage |
Distinct/Good |
Fracture |
Conchoidal |
Crystal Habit:Prismatic crystals, to 1 cm; granular, massive. |