Hand Sample: Aphanitic, grayish-white with some patches of fine-grained grey crystals. Weathers to medium yellow-brown.
Thin Section: 90% medium-grained well-weathered subhedral microcline, 10% plagioclase feldspar.
Western Minerals, Inc.
Is Part Of
St. Francois Mountains Batholith, Missouri
Purchased from Western Minerals, Inc
Number of Thin Sections