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Help with the locality.
  
  Index -> What is it? - Where is it from?
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Sante Celiberti




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PostPosted: May 08, 2022 15:47    Post subject: Help with the locality.  

Hello.

At the Genoa Mineral Show two weeks ago I purchased this Fluorite with Calcite from Illinois.
I love floaters and this specimen, although not exceptional, is a complete floater.
Unfortunately, the only indication on the locality was "Illinois".
The habit of Calcite would suggest Annabel Lee or Denton or Minerva No.1, but a trace of Malachite excludes Denton.
What do the friends of the Forum think?

Thank you very much.
Sante



IMG_20220501_220716.jpg
 Mineral: Fluorite, Calcite, Chalcopyrite, Malachite
 Locality:
Illinois, USA
 Dimensions: 10,7 x 7 cm
 Description:
The color of Fluorite varies from yellow to pale green/purplish. It is included by sub-millimeter Chalcopyrite. The biggest crystal is 57 mm.
 Viewed:  204 Time(s)

IMG_20220501_220716.jpg



IMG_20220508_193739.jpg
 Mineral: Fluorite, Calcite, Chalcopyrite, Malachite
 Locality:
Illinois, USA
 Dimensions: 10,7 x 7 cm
 Description:
Different view.
 Viewed:  204 Time(s)

IMG_20220508_193739.jpg



IMG_20220508_194613.jpg
 Mineral: Fluorite, Calcite, Chalcopyrite, Malachite
 Locality:
Illinois, USA
 Dimensions: 10,7 x 7 cm
 Description:
Direct lighting.
 Viewed:  205 Time(s)

IMG_20220508_194613.jpg



IMG_20220508_194757.jpg
 Mineral: Fluorite, Calcite, Chalcopyrite, Malachite
 Locality:
Illinois, USA
 Dimensions: 10,7 x 7 cm
 Description:
Calcite fluoresces, while Fluorite doesn't.
 Viewed:  205 Time(s)

IMG_20220508_194757.jpg



IMG_20220508_214207.jpg
 Mineral: Fluorite, Calcite, Chalcopyrite, Malachite
 Locality:
Illinois, USA
 Dimensions: 10,7 x 7 cm
 Description:
Inclusions of Chalcopyrite and traces of Malachite.
 Viewed:  203 Time(s)

IMG_20220508_214207.jpg



IMG_20220501_220858.jpg
 Mineral: Calcite, Fluorite, Chalcopyrite, Malachite
 Locality:
Illinois, USA
 Dimensions: 10,7 x 7 cm
 Description:
Backside.
 Viewed:  203 Time(s)

IMG_20220501_220858.jpg


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Tobi
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PostPosted: May 09, 2022 02:09    Post subject: Re: Help with the locality.  

Sante Celiberti wrote:
Hello.
At the Genoa Mineral Show two weeks ago I purchased this Fluorite with Calcite from Illinois.
I love floaters and this specimen, although not exceptional, is a complete floater.
Unfortunately, the only indication on the locality was "Illinois".
The habit of Calcite would suggest Annabel Lee or Denton or Minerva n°1, but a trace of Malachite excludes Denton.
What do the friends of the Forum think?
I think that's a tough one ;-) Maybe from Annabel Lee? Malachite occured there in some tiny amounts like the one on your specimen. And some of the lesser-known mines from Cave-In-Rock also produced malachite but I'm not sure if they also produced such well fluorite and calcite :-/

I hope someone will know, best regards
Tobi
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