Chert

Title

Chert

Alternative Title

Slightly metamorphosed sandstone

Identifier

GC-12

Description

Collected from the Redwall Formation, this is a highly silicious sample defined in the suite's documentation as chert, but the sample lacks the nano-crystalline appearance of a traditional chert. It appears to be more of a slightly metamorphosed quartzose sandstone.

Modal Abundances:
Quartz (95%)
Matrix (5%)
Both thin section images were taken at a 400x magnification.

Date

no date

Contributor

Western Minerals Inc.

Spatial Coverage

S. side of roadcut 13 mi, E. of Peach Springs, Coconino Co., Ariz.

Temporal Coverage

Mississippian

Accrual Method

Purchased from Western Minerals Inc.

Unit

Redwall Limestone

Number of Thin Sections

1

Geolocation