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Author Topic: There's lead in them there hills?  (Read 1912 times)

Offline Make it Lady

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There's lead in them there hills?
« on: 16/08/2010 17:07:59 »
Whilst walking in Scotland we sat and had lunch on the remains of an old lead mine. We picked up a few rocks and saw that some had blue/grey square crystals. The rocks were quite heavy, white on shiney. Firstly were the blue crystals lead? and secondly what were the carrier rocks. Sorry no photo!


 

Offline Geezer

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There's lead in them there hills?
« Reply #1 on: 16/08/2010 18:52:38 »
If you were near Elvanfoot, it's a fair bet it was lead.

http://en.wikipedia.org/wiki/Leadhills
 

Online Bored chemist

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There's lead in them there hills?
« Reply #2 on: 16/08/2010 19:47:49 »
It's an even better bet that it was galena- a lead ore.
http://en.wikipedia.org/wiki/Galena

I think most of the galena I have seen was in among quartz, but I'm not sure.
Is there a geologist in the house?
 

Offline Bass

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There's lead in them there hills?
« Reply #3 on: 16/08/2010 19:56:46 »
square crystals+blue grey color- no doubt it's galena (lead sulfide).
White carrier rocks (we use the jargon matrix or gangue) most likely quartz, though calcite, barite or anglesite are also possibilities.
Where in Scotland?
 

Offline CreativeEnergy

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There's lead in them there hills?
« Reply #4 on: 16/08/2010 20:01:19 »
That's what I was thinking as well...Galena.
 

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There's lead in them there hills?
« Reply #4 on: 16/08/2010 20:01:19 »

 

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