Hand Sample: Holocrystalline, phaneritic, medium-grained granite composed predominantly of smaller alkali feldspar crystals with larger crystals of smoky quartz, biotite, and plagioclase feldspar
Thin Section, XPL: Medium-grained euhedral and fine-grained anhedral crystals with moderate weathering observed. Minerals include 70% alkali feldspar, 20% quartz, 5% biotite
Western Minerals, Inc.
Is Part Of
St. Francois Mts. Batholith, Missouri red quarry of Missouri Granite Wares
Purchased from Western Minerals, Inc
Butler Hill Granite
Number of Thin Sections