Correct ID???

[gofishwi]

I found an interesting quarried stone and would like to know if my ID is correct for the layers. Layers bottom to top:

1. Limestone colored by iron
2. Two mm layer of pyrite. This layer looks gold from three sides and silver from the other.
3. Six mm layer of quartz.
4. Very thin layer of iron on portions of the top.

Is this layering combination common?



Thanks for any help you can provide!

Don

 

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[mamabear]

The combination is seen a lot here in SE MO. In which state did you find them?

 

[gofishwi]

Wisconsin, just west of Lake Winnebago.

Thanks for the reply.

 

[Brian T. Booth]

I found an interesting quarried stone and would like to know if my ID is correct for the layers. Layers bottom to top: 1. Limestone colored by iron 2. Two mm layer of pyrite. This layer looks gold from three sides and silver from the other. 3. Six mm layer of quartz. 4. Very thin layer of iron on portions of the top. Is this layering combination common? <img src="http://www.treasurenet.com/forums/attachment.php?attachmentid=908446"/><img src="http://www.treasurenet.com/forums/attachment.php?attachmentid=908447"/> Thanks for any help you can provide! Don

When you ask " Is this layering combination common?" this is referring to mineral paragenesis. When you find mineral assemblages such as these its usually associated with a fault. I have found mineral assemblages almost identical to your specimen. So to answer your question, yes these mineral associations are common around certain types are environments. It looks as if you also might have barite in your specimen. Great find.