Crystals

Old Dude

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Feb 20, 2013
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Luzerne County, Pa
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Hi all. Never posted in this forum before but was looking at a find today from a few years ago. Found this crystal formation in Northeastern Pennsylvania among coal mining discard rock. I know pyrite and iron is common with coal....can anyone tell me what the yellow is in this crystal? Thanks for any help.
 

chris rizin

Jr. Member
May 6, 2013
77
28
Fair Oaks CA
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brand new in the box hunk of junk discriminator 11 i got for twenty bucks!
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All Treasure Hunting
Could just be some iron staining or another mineral.. Pictures are kind of hard to see well enough for me.. Any local rock and gem shops or maybe a rock show in your area soon? I use some to help identify material.. Or even a school with a geology department..
 

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Old Dude

Old Dude

Gold Member
Feb 20, 2013
8,799
9,850
Luzerne County, Pa
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Fisher F75, Garrett ATPro, Garrett GTAx 500
Primary Interest:
Metal Detecting
No rotten egg smell. Thanks for your replies.
 

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Eu_citzen

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Sep 19, 2006
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Sweden
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Can also just be a yellowish clay.
 

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Cariboo5

Hero Member
Oct 27, 2011
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May be Calcite.....Try a small scratch and pour a bit of vingar on it. Calcite will fizz...
 

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