Granite (medium-grained)

Identifier

SFM-5

Description

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

Date

1/20/1969

Accrual Method

Purchased from Western Minerals, Inc

Number of Thin Sections

1

Geolocation