Rocks and Minerals Question Marathon

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Wadhk
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Re: Rocks and Minerals Question Marathon

Post by Wadhk »

Yup.Your turn.
2014 Events: Entomology, Materials Science, Rocks and Minerals, Scrambler
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Re: Rocks and Minerals Question Marathon

Post by quizbowl »

Image
How is this formed?
Uses?
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Re: Rocks and Minerals Question Marathon

Post by ragi »

I don't think it is amethyst possibly scoria :?: ;)
it is formed by low pressure on magma which lets gasses escape and create those holes
it is used for grill fuel and high temp.
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Re: Rocks and Minerals Question Marathon

Post by quizbowl »

ragi wrote:I don't think it is amethyst possibly scoria :?: ;)
it is formed by low pressure on magma which lets gasses escape and create those holes
it is used for grill fuel and high temp.
Yes!
2010: 5th in NYS
2011: 4th in NYS
2012: 3rd in NYS
<quizbowl> ey kid ya want some shortbread
<EASTstroudsburg13> I don't know why, but I just can't bring myself to delete this post.
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Re: Rocks and Minerals Question Marathon

Post by ragi » 

[URL=http://imgur.com/qVpDI][img]http://i.imgur.com/qVpDI.jpg[/img][/URL
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Re: Rocks and Minerals Question Marathon

Post by Wadhk » 

Slate
2014 Events: Entomology, Materials Science, Rocks and Minerals, Scrambler
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Re: Rocks and Minerals Question Marathon

Post by ragi »

yep
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Re: Rocks and Minerals Question Marathon

Post by Wadhk »

Image
2014 Events: Entomology, Materials Science, Rocks and Minerals, Scrambler
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Re: Rocks and Minerals Question Marathon

Post by tuftedtitmouse12 »

gneiss? (a random stab)

EDIT: maybe granite instead...
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Re: Rocks and Minerals Question Marathon

Post by Wadhk »

Not quite, try again.
2014 Events: Entomology, Materials Science, Rocks and Minerals, Scrambler
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