Wills Granite (Musco group)

Title

Wills Granite (Musco group)

Identifier

SFM-29

Description

Hand Sample: Fine-grained phaneritic granite. Mineralogy includes potassium feldspar, quartz and a black mineral. Weathers to light orange.
Thin Section, XPL: 60% plagioclase, 30% quartz, 10% very-fine-grained biotite

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