Specimen Details

  • Number Of Specimens

    2

  • Specimen Nature

    Form: Hand Specimen(s)

  • Date Collected From

    28/09/1947

  • Rock Name

    Porphyritic Granite

  • Rock Class

    Igneous

  • Rock Group

    Plutonic

  • Rock Description

    Pyramid Hill Granite; Type S,I Palaeozoic, Devonian This granite is composed of large (up to 5 cm) phenocrysts of euhedral greenish grey plagioclase in a finer grained matrix composed of light pink orthoclase, grey quartz, black biotite and some light plagioclase.

  • Category

    Natural Sciences

  • Scientific Group

    Geology

  • Discipline

    Petrology

  • Collecting Areas

    Rocks and Ores

  • Type of Item

    Specimen

Geospatial Information