Specimen Details

  • Number Of Specimens

    1

  • Specimen Nature

    Form: Hand Specimen(s)

  • Rock Name

    Rhyolite Porphyry

  • Rock Class

    Igneous

  • Rock Group

    Hypabyssal

  • Rock Description

    A specimen of a rhyolite porphyry dyke rock containing phenocrysts of quartz and feldspar and rare pieces ofthe country rock in a fine grained matrix. Previously called Granite Porphyey (dyke) and Porphyry Dyke.

  • Category

    Natural Sciences

  • Scientific Group

    Geology

  • Discipline

    Petrology

  • Collecting Areas

    Rocks and Ores

  • Type of Item

    Specimen