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Volume 18 Issue 5
Sep.  2021
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Henry A. Hänni, Leander Franz, ZHOU Wei. A New Deposit of Complex Fine-Grained Rocks from Western Pakistan:Sannan-Skarn[J]. Journal of Gems & Gemmology, 2016, 18(5): 1-6.
Citation: Henry A. Hänni, Leander Franz, ZHOU Wei. A New Deposit of Complex Fine-Grained Rocks from Western Pakistan:Sannan-Skarn[J]. Journal of Gems & Gemmology, 2016, 18(5): 1-6.
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A New Deposit of Complex Fine-Grained Rocks from Western Pakistan:Sannan-Skarn

  • 1. Research associate SSEF Swiss Gemmological Institute, Basel, Switzerland;

  • 2. Mineralogisch-Petrographisches Institut, Universität Base, Basel, Switzerland;

  • 3. SSEF Swiss Gemmological Institute, Basel, Switzerland

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  • Received Date: August 30, 2016
    Graphical Abstract
    • Abstract
  • A new deposit of complex fine-grained rocks was found in Western Pakistan. The material is characterised by its more or less green colour, due to chrome. The mineral components vary strongly in short distances and the minerals (hydrogrossular, diopside, aegirine, winchite, pectolite, chlorite, natrolite, sodalite etc.) are not well known by gemmologists. A common term to name the material is skarn, as it describes a rock formed by metasomatic replacement of a parent rock, commonly a calc-silicate rock, transformed in a metamorphic process. Sannan is a specific modifier that specially describes the skarn from the new occurrence.
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    • References (11)
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