Stono Granite

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.

Spatial Coverage

St. Francois Mountains Batholith, Missouri

Accrual Method

Purchased from Western Minerals, Inc.

Number of Thin Sections

1

Geolocation