File:Fist-sized crystal of calcite, Pine Point mine, NWT.jpg

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Description The following is the author's description of the photograph quoted directly from the photograph's Flickr page.
"Fist-sized crystal of calcite (calcium carbonate) from wastepiles of closed and abandoned Pine Point mine, Northwest Territories, Canada. Of no commercial value save that as a collector's specimen, when and where calcite forms translucent to transparent crystals.

ID tip # Calcite can be scratched by a knife, but then so will many other soft white minerals. Better test is a small squirt bottle of 10% HCl (or muriatic) acid. Calcite = limestone (the biological rock of life) and it will fizz like soda pop. Don't fizz-test the exposed surface of your nice show specimen though! "
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originally posted to Flickr as Calcite Crystal

Author Mike Beauregard
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This image was originally posted to Flickr by subarcticmike at https://www.flickr.com/photos/31856336@N03/3108675089. It was reviewed on 21 June 2010 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0.
21 June 2010
Camera location60° 51′ 34.8″ N, 114° 27′ 19.42″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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current02:02, 21 June 2010Thumbnail for version as of 02:02, 21 June 20101,776 × 1,413 (203 KB)Geo Swan (talk | contribs){{Information |Description=The following is the author's description of the photograph quoted directly from the photograph's Flickr page.<br/>"Fist-sized crystal of calcite (calcium carbonate) from wastepiles of closed and abandoned Pine Point mine, North

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