OctahedraStriated faces, combinations of forms,
and penetration twinning are common.
|Hardness||6 to 6.5|
|Streak||Greenish black to greenish grey|
|after Perkins, 362|
Pyrite in Hand Sample
Pyrite in Thin Section
Like every other metallic mineral, pyrite is just opaque and black in thin section. However, unlike most other metallic minerals, it can often be identified as pyrite by its cubic shape.