File:Fuchsitic quartzite, Laramie Range WY.jpg

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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).

Reference cited:

Harris (2003) - Decorative stones of southern Wyoming. Wyoming State Geological Survey Public Information Circular 42.
Date
Source 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)
Author James St. John

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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/15067510238. It was reviewed on 18 September 2014 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0.

18 September 2014

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current21:30, 18 September 2014Thumbnail for version as of 21:30, 18 September 20143,353 × 2,830 (4.21 MB)Tillman (talk | contribs)Transferred from Flickr via Flickr2commons

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