• Pumpellyite - Wikipedia

    en.wikipedia.org/wiki/Pumpellyite Pumpellyite occurs as amygdaloidal and fracture fillings in basaltic and gabbroic rocks in metamorphic terranes. It is an indicator mineral of the prehnite-pumpellyite metamorphic facies . It is associated with chlorite , epidote , quartz , calcite and prehnite .
  • Pumpellyite-(Fe2+): Mineral information, data and localities.

    www.mindat.org/min-3307.html About Pumpellyite- (Fe2+) Hide. Raphael Pumpelly [September 8, 1837 Owego, New York, USA – August 10, 1923 Newport, Rhode Island, USA] was an active mining consultant and was professor of Mining Science at Harvard University. He was appointed director of the New England branch of the United States Geological Survey in 1884.
  • Pumpellyite-(Fe++) Mineral Data

    webmineral.com/data/Pumpellyite-(Fe++).shtml A Bijoux Google Search for Pumpellyite-(Fe ) Dakota Matrix Minerals Google Search for Pumpellyite-(Fe ) John Betts Fine Minerals Search for Pumpellyite-(Fe ) McDougall Minerals Google Search for Pumpellyite-(Fe ) Rock and Mineral Shows Google Search for Pumpellyite-(Fe ) Weinrich Minerals, Inc. Google Search for Pumpellyite-(Fe )
  • Pumpellyite-(Fe): Mineral information, data and localities.

    www.mindat.org/min-10377.html [Pumpellyite-(Fe2+)] Wise and Moller (1990) Occurrence of Ca-Fe silicate minerals with zeolites in basalt cavities at Bombay, India. European Journal of Mineralogy, v. 2, pp. 875-883. European Journal of Mineralogy, v. 2, pp. 875-883.
  • Pumpellyite: The mineral pumpellyite information and picture

    www.minerals.net/mineral/pumpellyite.aspx Pumpellyite is a group of closely related minerals that have a minor of variation of elements among members. Pumpellyite-(Mg) and Pumpellyite-(Fe 2+) are the most common members, with the other members being rare. In addition to members that have the name designation of Pumpellyite with an added chemical suffix, there are additional extended Pumpellyite group members not discussed in this guide that have their own unique names.
  • Pumpellyite-(Fe+++) Mineral Data

    webmineral.com/data/Pumpellyite-(Fe+++).shtml A Bijoux Google Search for Pumpellyite-(Fe ) Dakota Matrix Minerals Google Search for Pumpellyite-(Fe ) John Betts Fine Minerals Search for Pumpellyite-(Fe ) McDougall Minerals Google Search for Pumpellyite-(Fe ) Rock and Mineral Shows Google Search for Pumpellyite-(Fe ) Weinrich Minerals, Inc. Google Search for Pumpellyite-(Fe )
  • Pumpellyite-(Fe) - Mindat.org

    www.mindat.org/gm/10377 Gas cavities in basalt matrix lined with sprays of 1 mm green Pumpellyite-(Fe) crystals. No damage. Overall size of mineral specimen: 25x15x15 mm. Size of individual crystals: 1 mm.
  • Pumpellyite-(Mn2+): Mineral information, data and localities.

    www.mindat.org/min-3310.html Named for its similarity to other pumpellyite group members. Raphael Pumpelly [September 8, 1837 Owego, New York, USA – August 10, 1923 Newport, Rhode Island, USA] was an active mining consultant and was professor of Mining Science at Harvard University.
  • Pumpellyite-(Mg) Mineral Data

    webmineral.com/data/Pumpellyite-(Mg).shtml Pumpellyite-(Mg) Crystallography: Axial Ratios: a:b:c =1.4939:1:3.2384 : Cell Dimensions: a = 8.82, b = 5.904, c = 19.12, Z = 4; beta = 97.4° V = 987.35 Den(Calc)= 3.17
  • Chlorastrolite - Wikipedia

    en.wikipedia.org/wiki/Chlorastrolite Chlorastrolite has finely radiated or stellate masses that have a "turtleback" pattern. The stellate masses tend to be chatoyant, meaning they have a changeable luster. This chatoyancy can be subtranslucent to opaque. Cholorastrolite is a variety of pumpellyite: Ca2(Mg,Fe)Al2(SiO4)(Si2O7)(OH)2·H2O.