3-phase inclusion in Fluorite

Images made through a microscope. All subject types.

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Conny Forsberg
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Joined: Thu Oct 07, 2010 7:06 am
Location: Sweden
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3-phase inclusion in Fluorite

Post by Conny Forsberg »

Image

3 phase inclusion consisting of liquid petroleum, gas and solid, ring shaped, bitumen. In Fluorite, Illinois, USA.
Stone from the collection of Hans Nyström, Stockholm

Magnification: approximately 75x
Exposure: 3 sec
2 images stacked with CZM
Camera: Nikon D40X
Microscope: Wild M400
Conny Forsberg FGA

Pau
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Post by Pau »

Petroleum inside a fluorite crystal! :o
I never saw anything like this. Highly interesting.
Pau

g4lab
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Post by g4lab »

Welcome Conny!

Mitch640
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Post by Mitch640 »

Interesting formation. I know there is coal, oil and gas in Illinois. I didn't know it would form octagonal shaped bubbles in rocks. Nice image.

Jbailey
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Location: Wisconsin, USA

Post by Jbailey »

Welcome to the forum, Conny:

That's a good image of a most interesting specimen.
I have large specimens of Fluorite from southern Illinois that I bought from a miner in the 1960's. None have these inclusions That I can discern. They are all too darkly colored to see within.

The mid-west has other bitumen and petroleum associations with collectible minerals. I have a geode from Hamilton, IL that is filled with crude oil. Coincidently, The collector I got it from was also a gemologist and jewelry salesman. I also have Calcite crystals I collected from western Indiana that were coated on the outside with bitumen prior to my carefully cleaning it off.

Jim

Conny Forsberg
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Joined: Thu Oct 07, 2010 7:06 am
Location: Sweden
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Post by Conny Forsberg »

Thanks G4 :)

I have found many nice inclusions in fluorite from Illinois during the years but this is the most spectacular of them all. The cavity almost seems dodechaedral.
Conny Forsberg FGA

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