Porphyritic quartz syenite

Title

Porphyritic quartz syenite

Alternative Title

Albany porphyritic quartz syenite

Identifier

WMB-16

Description

Contains large phenocrysts of perthite. Rocks in the outcrop also contain abundant mafic xenoliths. Sample collected from a ring dike

The bulk of the rock contains quartz, k-spar, and amphibole.

Contributor

Western Minerals, Inc.

Is Part Of

Spatial Coverage

0.4 miles E. of Hwy. 302-16. E. of Lower Bartlett, NH; E. Branch of the Seco River
Central region of North Conway quadrangle map, NH

Accrual Method

Purchased from Western Minerals, Inc.

Number of Thin Sections

1