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A mineralogical trip through the states of USA - Illinois
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Tobi




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PostPosted: Oct 22, 2017 16:44    Post subject: Re: A mineralogical trip through the states of USA - Illinois  

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




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PostPosted: Apr 15, 2018 10:37    Post subject: Re: A mineralogical trip through the states of USA - Illinois  

Speaking of Denton Mine, I discovered this one in the Marburg Museum yesterday:


IMG_1603.JPG
 Mineral: Fluorite, Sphalerite
 Locality:
Denton Mine, Goose Creek Mine group, Harris Creek Sub-District, Hardin County, Illinois, USA
 Dimensions: Specimen size 22 cm
 Description:
Collection Mineralogical Museum Marburg (my photo)
 Viewed:  1446 Time(s)

IMG_1603.JPG


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Bob Harman




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PostPosted: Oct 12, 2019 18:49    Post subject: Re: A mineralogical trip through the states of USA - Illinois  

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.



fullsizeoutput_29e4.jpeg
 Mineral: Calcite
 Locality:
Harris Creek Sub-District, Hardin County, Illinois, USA
 Dimensions: See ruler
 Description:
Self-collected April 2005
 Viewed:  293 Time(s)

fullsizeoutput_29e4.jpeg


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