Fuchsitic quartzite, Laramie Range WY

Autor/Urheber:

James St. John

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https://www.dewiki.de/b/1491bc

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Beschreibung:

Fuchsitic quartzite (6.8 cm across at its widest) from the Precambrian of Wyoming, USA.

This is a piece of quartzite richly infused with greenish fuchsite (= chromian muscovite mica). It comes from a small abandoned quarry where flaggy rocks were excavated for use as decorative stones (see Harris, 2003, p. 9).

Geologic unit & age: Elmers Rock Greenstone Belt, Archean, >2.54 Ga.

Locality: small abandoned quarry ~0.5 miles north of Tunnel Road, west of Squaw Mountain & south-southeast of Government Peak, eastern flanks of the Laramie Range, far-eastern Albany County, WSW of the town of Wheatland, southeastern Wyoming, USA (vicinity of 41° 55' 00.40" North, 105° 17' 48.53" West).

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Reference cited:

Harris (2003) - Decorative stones of southern Wyoming. Wyoming State Geological Survey Public Information Circular 42.

Lizenz:

CC BY 2.0

Credit:

Fuchsitic quartzite (Elmers Rock Greenstone Belt, Archean, >2.54 Ga; abandoned quarry north of Tunnel Road & west of Squaw Mountain, eastern flanks of the Laramie Range, southeastern Wyoming, USA)

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