Title
Stono Granite
Identifier
SFM-25
Description
Hand Sample: Holocrystalline, fine-grained phaneritic granite with crystals of potassium feldspar and smoky quartz. Weathers to orange-brown and light-gray.
Thin Section: Very weathered coarse-grained phenocrysts of quartz, alkali feldspar, and plagioclase feldspar. Smaller crystals of the same minerals and biotite surround the phenocrysts.
Date
1/20/1969
Contributor
Western Minerals, Inc.
Is Part Of
Spatial Coverage
St. Francois Mountains Batholith, Missouri
Accrual Method
Purchased from Western Minerals, Inc.
Number of Thin Sections
1