Coarse igneous rock
Description: Granodiorite: grey; fine- to medium-grained; white feldspar (some equant), quartz and biotite (sometimes in aggregates). Specimen shows a boundary between an area of more biotite-rich rock from a more feldspar-rich composition.
Measurements: 5 1/4 inch x 3 3/4 inch x 2 inch
Taxonomic name: Dhoon granodiorite: granodiorite
Collection: Natural History Geology Collection
ID number: 1958-0241
Comments
Linked Records
Places: