Siderite
Siderite is a mineral with the chemical formula FeCO3. It has a Mohs hardness of 3.5 - 4 and vitreous to pearly luster.
Siderite properties
| Type | Mineral |
|---|---|
| Chemical formula | FeCO3 |
| Mohs hardness | 3.5 - 4 |
| Luster | Vitreous to pearly |
| Typical colors | Brown, yellow, gray, greenish |
| Formation | Typically forms in sedimentary environments, especially in marine deposits |
| Rarity | 6 / 10 |
Mohs hardness 3.5–4 — soft
1 · Talc5 · Apatite10 · Diamond
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