| Classification |
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| Species: | Pargasite |
| Formula: | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| Comments: | Sipilä (1992) provides analyses of pargasites from different rocks:
Amphibole rock: (Na0.617,K0.037)0.654(Ca1.956,Na0.044)2(Mg3.299,Fe2+0.768,Al0.995)5.062(Al1.727,Si6.273)O22(OH)2
olivinegabbro:
(Na0.862,K0.028)0.890 (Ca1.751,Fe0.249)2(Mg 3.271,Mn2+ 0,036, Fe2+0.649, Al 1,258)5.214(Al2.576,Si 5.424)O22(OH)2
gabbro sills between gneiss interlayers:
(Na0.494,K0.254)0.749 (Ca1.712,Na 0.288)2(Mg 2.532, Fe2+1.695, Ti, 0.451 Al 0.336)5.038(Al 1.727,Si 6.273)O22(OH)2 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Pargasite data |
| Locality Data: | Click here to view Halti-Ridnitsohkka, Enontekiö, Lapland, Finland |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 881390 |
| Long-form Identifier: | 1:3:881390:9 |
| GUID (UUID V4): | 5fa5a9d1-d65b-4af5-bb6f-88f7ec0f67e3 |
| References |
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| Reference Search (possible matching items) |
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 | | Journal (volume) | | Geological Survey of Finland, Bulletin 362 THE CAI-IEDONIAN HALTI-RIDNIT'~30HKKA IGNJEOUS COMPLEX IN...The Caledonian Halti-Ridnitsohkka igneous complex in Lapland. Geological Survey of Finland, Bulletin 362...appendices. The Halti-Ridnitsohkka mafic-ultramafic complex is located in northwest of Finnish Lapland, straddling...complex consists of the Ridnitsohkka gabbro sill unit in ills eastern part and. the Halti dunite-troctolite-olivine...into which the Ridnitsohkka gabbroic sills and the picritic parent magmas to the Halti curnulates were |  | | Book | | Precambrian Geology, 14 PRECAMBRIAN GEOLOGY OF FINLAND KEY TO THE EVOLUTION OF THE FENNOSCANDIAN SHIELD...Precambrian Geology, 14 PRECAMBRIAN GEOLOGY OF FINLAND KEY TO THE EVOLUTION OF THE FENNOSCANDIAN SHIELD...University of Helsinki, Finland P.A. NURMI Geological Survey of Finland Espoo, Finland .. .. O.T. RAMO University...University of Helsinki, Finland ELSEVIER Amsterdam – Boston – Heidelberg – London – New York – Oxford...Introduction to the Archean of Finland .....22 1.1. The extent of the Archean in Finland ..................... |
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