Specimen Details

  • Number Of Specimens

    1

  • Specimen Nature

    Hand Specimen

  • Rock Name

    Trachyandesite ('macedonite')

  • Rock Class

    Igneous

  • Rock Group

    Volcanic

  • Rock Description

    Dense, fine-grained rock, with occasional small phenocrysts, but with biotite the only visible mineral, occurring as flakes on fractures. Dark bluish black rock when fresh, with a platy structure.

  • Category

    Natural Sciences

  • Scientific Group

    Geology

  • Discipline

    Petrology

  • Collecting Areas

    Rocks and Ores

  • Type of Item

    Specimen

Geospatial Information

  • Country

    Australia

  • State

    Victoria

  • Precise Location

    Spring Mound, 4 km NE of Rochford