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Posts treating: "Hardin County Illinois"

Sunday, 19 October 2014

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Fibrous Calcite from Illinois 

Louisville Area Fossils [2014-10-19 18:48:00]  recommend  recommend this post  (130 visits) info

 Devonian; US
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Back in 2010 I found a Devonian brachiopod fossil with a fibrous or needlelike mineral growth in it. I was trying to determine what this was. Last week while touring the Gallery of Natural History section of the Arizona Historical Society Museum at Papago Park (1300 N. College Ave, Tempe Arizona 85281) I saw a calcite specimen (AHS-NH#11396) from Cave in the Rock, Hardin County
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