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Tobi
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Joined: 07 Apr 2009
Posts: 4112
Location: Germany
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Posted: Oct 22, 2017 16:44 Post subject: Re: A mineralogical trip through the states of USA - Illinois |
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Turbo wrote: | A pair of specimens from Denton Mine both displaying similar habits but on different matrices. The specimen on the left is on limestone and the one on the right is on fluorite. I was very happy bring this pair together in my calcite collection! | A great pair!
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4112
Location: Germany
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Posted: Apr 15, 2018 10:37 Post subject: Re: A mineralogical trip through the states of USA - Illinois |
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Speaking of Denton Mine, I discovered this one in the Marburg Museum yesterday:
Mineral: | Fluorite, Sphalerite |
Locality: | Denton Mine, Goose Creek Mine group, Harris Creek Sub-District, Hardin County, Illinois, USA | |
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Dimensions: | Specimen size 22 cm |
Description: |
Collection Mineralogical Museum Marburg (my photo) |
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Bob Harman
Joined: 06 Nov 2015
Posts: 765
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Posted: Oct 12, 2019 18:49 Post subject: Re: A mineralogical trip through the states of USA - Illinois |
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These peculiar crystal groupings of jackstraw calcites were collected from the dumps of the fluorite processing center in Rosiclaire Illinois in April 2005.
At that time, shortly after the last Harris Creek Mining District mines had closed, some decent specimens could still be collected.
Mineral: | Calcite |
Locality: | Harris Creek Sub-District, Hardin County, Illinois, USA | |
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Dimensions: | See ruler |
Description: |
Self-collected April 2005 |
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