Greenschist
A rock subtype
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About Greenschist
A schist whose greenish colour is due to the presence of minerals such as actinolite, chlorite and epidote.
It is the schisty equivalent of the fine-grained, massive prasinite.
It is the schisty equivalent of the fine-grained, massive prasinite.
Unique Identifiers
Mindat ID:
48735
Long-form identifier:
mindat:1:1:48735:7
Classification of Greenschist
- Rock
- Metamorphic rock
- Very low to low-grade metamorphic rock
- Greenschist
- Schist
- Greenschist
- Very low to low-grade metamorphic rock
- Metamorphic rock
Sub-divisions of Greenschist
Mineralogy of Greenschist
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
| Actinolite | âŧCa2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Chlorite | A name commonly used for undifferentiated members of the chlorite group. |
| Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
Synonyms of Greenschist
Other Language Names for Greenschist
German:GrÞnschiefer
Common Associates
Associations Based on Photo Data:
| 5 photos of Greenschist associated with Chalcopyrite | CuFeS2 |
| 5 photos of Greenschist associated with Pyrite | FeS2 |
| 5 photos of Greenschist associated with Pyrrhotite | Fe1-xS |
| 5 photos of Greenschist associated with Magnetite | Fe2+Fe3+2O4 |
| 1 photo of Greenschist associated with Calcite | CaCO3 |
| 1 photo of Greenschist associated with Quartz | SiO2 |
| 1 photo of Greenschist associated with Chlorite Group |
Internet Links for Greenschist
mindat.org URL:
https://www.mindat.org/min-48735.html
Please feel free to link to this page.
Please feel free to link to this page.
References for Greenschist
Reference List:
Dungan, M. A., Vance, J. A., Blanchard, D. P. (1983) Geochemistry of the Shuksan greenschists and blueschists, North Cascades, Washington: Variably fractionated and altered metabasalts of oceanic affinity. Contributions to Mineralogy and Petrology, 82 (2) 131-146 doi:10.1007/bf01166608


Jackson County Iron Mine, Jackson County, Wisconsin, USA