| Name |
|
Siderite
(Iron Spar, Spathose Iron) |
| Chemistry |
|
FeCO3 |
| Hardness |
|
3.5 |
| Lustre |
|
vitreous |
| Colour |
|
yellowish brown, brown, grey, yellowish grey |
| Streak |
|
white |
| Density [g/cm3] |
|
3.7 - 3.9 |
| Crystal habit |
|
trigonal, crystals often
curved |
| Cleavage, Fracture |
|
[1011] perfect, fracture jagged |
| other characteristics
and occurrences |
|
hydrothermal veins of intermediate
to low temperature, also sedimentary formations |
 |
|
|