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Actinolite-Tremolite Series

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Crystal System:
Monoclinic
Series Formula:
☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2 to ☐{Ca2}{Mg5}(Si8O22)(OH)2
A series between Actinolite and Tremolite

Tremolite is defined as having an Mg/(Mg+Fe2+) ratio ≥ 0.9; actinolite has a ratio of 0.5–0.9 and ferro-actinolite has a ratio of less than 0.5.


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Crystallography of Actinolite-Tremolite SeriesHide

Crystal System:
Monoclinic

Common AssociatesHide

Associated Minerals Based on Photo Data:
Calcite8 photos of Actinolite-Tremolite Series associated with Calcite on mindat.org.
Vigezzite6 photos of Actinolite-Tremolite Series associated with Vigezzite on mindat.org.
Quartz6 photos of Actinolite-Tremolite Series associated with Quartz on mindat.org.
Hessonite6 photos of Actinolite-Tremolite Series associated with Hessonite on mindat.org.
Magnetite4 photos of Actinolite-Tremolite Series associated with Magnetite on mindat.org.
Pyrite2 photos of Actinolite-Tremolite Series associated with Pyrite on mindat.org.
Albite1 photo of Actinolite-Tremolite Series associated with Albite on mindat.org.
Grossular1 photo of Actinolite-Tremolite Series associated with Grossular on mindat.org.
Smoky Quartz1 photo of Actinolite-Tremolite Series associated with Smoky Quartz on mindat.org.
Diopside1 photo of Actinolite-Tremolite Series associated with Diopside on mindat.org.

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 Actinolite-Tremolite SeriesHide

Localities for Actinolite-Tremolite SeriesHide

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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Australia
 
  • South Australia
    • Mt Lofty Ranges
      • North Mt Lofty Ranges
        • Burra
Collection of Mark Willoughby
Austria
 
  • Carinthia
    • Karawanken
      • Bad Eisenkappel (Bad Eisenkappl)
        • Ebriach
C.Auer (2017)
Canada
 
  • Ontario
    • Haliburton Co.
      • Cardiff Township
Anne P. Sabina (1986) Rocks and Minerals for the Collector, Bancroft-Parry Sound and South Eastern Ontario
      • DudleyTownship
Van King
      • Lutterworth Township
Canadian Museum of Nature data
    • Hastings Co.
      • Monteagle Township
        • Musclow Greenview Road roadcuts
Andrew Debnam collection
  • Québec
    • Outaouais
      • Gatineau TE
        • Gatineau Park
Matt Courville collection
Chile
 
  • Valparaíso Region
    • Petorca Province
Maksaev, V., Townley, B., Palacios, C., and Camus, F. (2007): Metallic ore deposits. In: Moreno, T., and Gibbons, W. (editors): The Geology of Chile. The Geological Society (London), pp. 414.
France
 
  • Auvergne-Rhône-Alpes
    • Savoie
      • La Lauzière massif
DE ASCENCAO GUEDES R.. (2000). La Lauzière : les espèces minérales, Savoie, France. Le Règne Minéral hors-série n°6, pp. 24-39. Editions du Piat.
DE ASCENCAO GUEDES R.. (2000). La Lauzière : les espèces minérales, Savoie, France. Le Règne Minéral hors-série n°6, pp. 24-39. Editions du Piat.
Germany
 
  • Saxony-Anhalt
    • Harz
      • Thale
        • Friedrichsbrunn
Thomas Lühr
Italy
 
  • Tuscany
    • Florence Province
      • Firenzuola
        • Futa Pass area
          • Monte Beni
Bardi, T., Becucci, A. & Biagioni, C. (2012): Monte Beni - I minerali dell'ex cava Fantoni (Pietramala, Firenzuola, Firenze). MICRO, 3/2012, 98-109.
    • Livorno Province
      • Elba Island
        • Rio Marina
Pandeli, E., Principi, G., Bortolotti, V., Benvenuti, M., Fazzuoli, M., Dini, A., Fanucci, F., Menna, F., Nirta, G. (2013): The Elba Island: an intriguing geological puzzle in the Northern Tyrrhenian Sea. 85° Congresso Nazionale della Società Geologica Italiana, Pisa 6-8 settembre 2010. Geological Field Trips, Vol. 5, No. 2.1, 144 pp.
    • Lucca Province
      • Garfagnana
        • San Romano Garfagnana
Biagioni, C. (2009). Minerali della Provincia di Lucca. Associazione Micro-Mineralogica Italiana, Cremona, 352 pp.
Norway
 
  • Buskerud
    • Kongsberg
Van der Wel, D. (1972): Contribution to the Mineralogy of Norway No. 51. Asbestos minerals from Kongsberg silver deposit. Norsk Geologisk Tidsskrift 52: 287-294
        • Overberget Mining Field
Nordrum, F.S.(1999): Nyfunn av mineraler i Norge 1998-1999. Norsk Bergverksmuseum Skrift 15: 87-90
Sweden
 
  • Värmland
    • Filipstad
      • Persberg district
        • Pajsberg
Nysten, P. (1984): Kleinod des Nordens - Harstigen in Schweden. Magma 2/1984, 12-30.
  • Västmanland
    • Ljusnarsberg
      • Uvberget
Wilke, H.-J. (1976): Mineral-Fundstellen Band 4: Skandinavien. Chr. Weise Verlag, München, 370 pp. (p. 197-198)
Wilke, H.-J. (1976): Mineral-Fundstellen Band 4: Skandinavien. Chr. Weise Verlag, München, 370 pp. (p. 197-198)
Switzerland
 
  • Wallis (Valais)
    • Binn Valley
"Amir Akhavan" collection
UK
 
  • England
    • Cornwall
      • Lizard Peninsula
        • Grade-Ruan
          • Kennack
            • Kennack Cove (Kennack Sands)
Alysson Rowan Collection
USA
 
  • California
    • Santa Cruz Co.
      • Santa Cruz Mts
        • Ben Lomond Mountain
          • Ben Lomond Mountain area
Leo, G.W. (1967) The plutonic and metamorphic rocks of the Ben Lomond Mountain area, Santa Cruz County, California. California Division of Mines and Geology Special Report 91: 41; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 399.
  • Massachusetts
    • Middlesex Co.
P. Cristofono collection
P. Cristofono collection
  • Oregon
    • Coos Co.
      • Bandon
Alt, D., and Hyndman, D., 1978, Roadside Geology of Oregon: Missoula, Mountain Press, p. 97-98.
  • Washington
    • King Co.
      • North Bend
        • Hansen Creek
T Douglas Schonewald Collection
Mineral and/or Locality  
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