Epidosite
A rock subtype
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About Epidosite
A low- to medium-temperature metasomatic rock mostly formed by the alteration of basaltic rocks, but also other basic to acid igneous rocks; principally composed of epidote and quartz, with minor chlorite and amphibole.
See also epidotite (almost synonymous but more epidote-rich).
May be accompanied by prehnitite.
See also unakite.
See also epidotite (almost synonymous but more epidote-rich).
May be accompanied by prehnitite.
See also unakite.
Unique Identifiers
Mindat ID:
50752
Long-form identifier:
mindat:1:1:50752:7
Similar Names
Classification of Epidosite
- Rock
- Metamorphic rock
- Metasomatic-rock
- Epidosite
- Epidosite
- Metasomatic-rock
- Metamorphic rock
Mineralogy of Epidosite
Essential minerals - these are minerals that are required within the classification of this rock:
| Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
Synonyms of Epidosite
Internet Links for Epidosite
mindat.org URL:
https://www.mindat.org/min-50752.html
Please feel free to link to this page.
Please feel free to link to this page.
References for Epidosite
Reference List:
Harper, Gregory D. (1995) Pumpellyosite and prehnitite associated with epidosite in the Josephine ophiolite—Ca metasomatism during upwelling of hydrothermal fluids at a spreading axis. In Geological Society of America Special Papers Vol. 296. Geological Society of America. p.101-122. doi:10.1130/spe296-p101
Banerjee, Neil R., Gillis, Kathryn M., Muehlenbachs, Karlis (2000) Discovery of epidosites in a modern oceanic setting, the Tonga forearc. Geology, 28 (2) 151-154 doi:10.1130/0091-7613(2000)028<0151:doeiam>2.3.co;2
Gilgen, Samuel A., Diamond, Larryn W., Mercolli, Ivan (2016) Sub-seafloor epidosite alteration: Timing, depth and stratigraphic distribution in the Semail ophiolite, Oman. Lithos, 260. 191-210 doi:10.1016/j.lithos.2016.05.014
Localities for Epidosite
Showing 18 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Australia | |
| Robertson (1959) |
Austria | |
| Sedlacek (1950) |
Cameroon | |
| Njinchuki et al. (2026) |
Canada | |
| Katz et al. (2025) |
Chile | |
| fluid inclusion microthermometry et al. (1-2) +1 other reference |
DR Congo | |
| Roccati (1907) |
Pakistan | |
| Roccati (1909) |
Poland | |
| Lis et al. (1986) |
Russia | |
| Kasatkin et al. (2025) |
| Novoselov et al. (2025) |
| Savva et al. (2011) |
Serbia | |
| Radosavljević-Mihajlović et al. (2017) |
| Budinov et al. (2015) |
Spain | |
| González-Jiménez et al. (2026) |
| González-Jiménez et al. (2026) | |
Uganda | |
| Roccati (1907) |
| Roccati (1907) | |
Zimbabwe | |
| Wolfgang Hampel |
Harding Mine, Picuris District, Taos County, New Mexico, USA