Orbicular Granite quarry, Boogardie Station, Mount
Located 19 kilometres west of Mount Magnet. A quarry here produces orbicular granite (actually granodiorite or tonalite) for ornamental stone. The orbicules occur in a granodioritetonalite matrix, and consist of andesine (sodic plagioclase), hornblende, and biotite, arranged radially around a core of plagioclase and/or hornblende, or less commonly mafic schist. The orbicules are formed by