| Id | 159 |
| Identification Type | Mineral |
| Name | Greigite |
| Distinguishing Features | |
| Description | Occurs in microbial biofilms, as disseminated crystallites, and as framboids. Opaque where visible by light microscopy. In reduced sediments, greigite is often considered a metastable phase transitional between highly reactive iron monosulfide (mackinawite) and pyrite. Common in reduced lacustrine sediments. |
| Tags | |
| External Resources | |
| Imposters |
Pyrite
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| Images |
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