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Clinoamphibole

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Formula:
AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
A generic name for amphiboles crystallizing in the monoclinic system, e.g., hornblende, cummingtonite, grunerite, tremolite, actinolite, riebeckite, glaucophane, and arfvedsonite.


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Unique IdentifiersHide

Mindat ID:
55565 (as Clinoamphibole)
207 (as Amphibole Supergroup)
Long-form identifier:
mindat:1:1:55565:8 (as Clinoamphibole)
mindat:1:1:207:7 (as Amphibole Supergroup)

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

SymbolSourceReference for Standard
CamIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
CamWhitney & Evans (2010)Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371

Chemistry of ClinoamphiboleHide

Mindat Formula:
AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2

Other Language Names for ClinoamphiboleHide

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for ClinoamphiboleHide

References for ClinoamphiboleHide

Localities for ClinoamphiboleHide

Showing 18 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.
Algeria
 
  • Jijel Province
Boukaoud et al. (2021)
Antarctica
 
  • East Antarctica
    • Queen Maud Land
Ferrero et al. (2018)
Brazil
 
  • Espírito Santo
    • Cachoeiro de Itapemirim
      • Itaoca
Mesquita et al. (2017)
Canada
 
  • Northwest Territories
    • Mazenod Lake District
Dai (1995)
Finland
 
  • Lapland
    • Sodankylä
      • Viiankiaapa mire area
Pelayo Barrón Francisco (2020)
Italy
 
  • Campania
    • Metropolitan City of Naples
      • Ercolano
        • San Vito
Balassone et al. (2013)
Panikorovskii et al. (2017)
  • Lazio
    • Viterbo Province
      • Vetralla
Papua New Guinea
 
  • Central Province
    • Ofi Creek
Dugmore et al. (1998)
South Africa
 
  • Limpopo
    • Sekhukhune District Municipality
      • Fetakgomo Tubatse Local Municipality
        • Steelpoort
Oberthür et al. (2021)
Spain
 
  • Castile and Leon
    • Salamanca
      • Los Santos
Losantos et al. (2025)
      • Morille
Losantos et al. (2025)
  • Valencian Community
González-Jiménez et al. (2026)
Sweden
 
  • Örebro County
    • Lindesberg
      • Stråssa
Andersson et al. (2022)
    • Nora
      • Rödberg Mines
Andersson et al. (2024)
  • Västmanland County
    • Norberg
      • Getback ore field
Taddei et al. (2025)
    • Sala Municipality
      • Sala
Jansson et al. (2022)
Jansson (2022)
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