Coarse igneous rock
Description: Medium-grained; grey; quartz, feldspar, biotite; biotite aggregations define rough foliation.
Measurements: 3 1/4 inch x 4 1/2 inch x 7/8 inch
Taxonomic name: Dhoon granodiorite: granodiorite
Collection: Natural History Geology Collection
ID number: 1955-0112
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