Specimen Details

  • Number Of Specimens

    1

  • Specimen Nature

    Hand Specimen

  • Rock Name

    Trachyte

  • Rock Class

    Igneous

  • Rock Group

    Volcanic

  • Rock Description

    This specimen is composed of phenocrysts of black biotite (1-2mm), and a few grey feldspars in a fine grained, black matrix.

  • Category

    Natural Sciences

  • Scientific Group

    Geology

  • Discipline

    Petrology

  • Collecting Areas

    Rocks and Ores

  • Type of Item

    Specimen

Geospatial Information