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Omphacitite

A rock classification type
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A high P/T metamorphic rock composed of more than 75% vol. omphacite. The name eclogite cannot be applied in this case.


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Unique IdentifiersHide

Mindat ID:
50031
Long-form identifier:
mindat:1:1:50031:1

Classification of OmphacititeHide

Sub-divisions of OmphacititeHide

Mineralogy of OmphacititeHide

Essential minerals - these are minerals that are required within the classification of this rock:
Pyroxene > Clinopyroxene > Omphacite(NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6

Pronunciation of OmphacititeHide

Pronunciation:
PlayRecorded byCountry
Jolyon RalphUnited Kingdom

Internet Links for OmphacititeHide

References for OmphacititeHide

Localities for OmphacititeHide

Showing 6 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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Locality ListHide

- 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). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Guatemala
 
Zhao et al. (2026)
Italy
 
  • Piedmont
    • Cuneo Province
      • Crissolo
        • Pian del Re
Lombardo et al. (1978) +1 other reference
    • Metropolitan City of Turin
      • Brosso
Andreoli et al. (1978)
      • Settimo Vittone
Compagnoni et al. (2014)
Japan
 
  • Nagasaki Prefecture
    • Saikai City
Nishiyama et al. (2017)
Spain
 
  • Andalusia
    • Almería
      • Cóbdar
Puga et al. (2025)
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To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
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