|
Hard- ness |
Cleavage |
Fracture |
Trans- parency |
10% HCl Reaction |
SG |
Luster |
Color |
Streak |
Xtal Form |
Mineral Class |
Comments | siderite | 3.50 | perfect | conchoidal | Transparent | none | 3.70 | glassy | brown | white | faceted | carbonates | Fragile rhombohedral crystals with curved striated faces. Yellow to brown to black color. |
|