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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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