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Actinolite-Tremolite Series

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System:Monoclinic
Series Formula:
☐{Ca
 
2
}{(Mg,Fe
2+
 
)
 
5
}(Si
 
8
O
 
22
)(OH)
 
2
-
☐{Ca
 
2
}{Mg
 
5
}(Si
 
8
O
 
22
)(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.

Classification of Actinolite-Tremolite Series

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Crystallography of Actinolite-Tremolite Series

Crystal System:Monoclinic

Other Information

Health Warning: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 Series

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  • Localities for Actinolite-Tremolite Series

    The 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.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Canada
     
    • Ontario
      • Haliburton Co.
    Canadian Museum of Nature data
        • Monmouth Township
    Van King
    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
     
    • 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
          • 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.
      • 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. Bergverksmuseets Skrift 15: 87-90
    Sweden
     
    • 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
    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.
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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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