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Extraordinary druzy mineral formation from Pacific Northwest but what the heck is it?
  
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rockngifts




Joined: 25 May 2014
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Location: kalama, Washington

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PostPosted: May 12, 2018 00:27    Post subject: Extraordinary druzy mineral formation from Pacific Northwest but what the heck is it?  

I’ve found quite a large druzy quartz or chalcedony mineral formation with what looks like 3-D tube structures throughout. It’s very sparkly with clear to green coloration and the pieces range anywhere from 1 lb to 30 lbs. They were exposed during demolition while constructing a housing development, inside a very large boulder in Kalama, Washington. Has anyone ever seen something like it? I’d really like to know what it is and what it’s worth?


F4A747D6-06A7-4ED2-8A4D-2C5FD9FE01D0.jpeg
 Mineral: Quartz
 Locality:
Washington, USA
 Dimensions: 40 cm x 30 cm
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F4A747D6-06A7-4ED2-8A4D-2C5FD9FE01D0.jpeg



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Peter Lemkin




Joined: 18 Nov 2016
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Location: Prague

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PostPosted: May 12, 2018 01:20    Post subject: Re: Extraordinary druzy mineral formation from Pacific Northwest but what the heck is it?  

Yes, looks like chalcedony - and such formations as this are not too uncommon. No one will nor can give you a price, as this is a non-commercial site. Check the hardness and perhaps the specific gravity of a small piece to make sure as to what it is.
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