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Re: Rocks and Minerals Question Marathon

Posted: December 10th, 2011, 8:05 pm
by PacificGoldenPlover
Obsidian?

Re: Rocks and Minerals Question Marathon

Posted: December 10th, 2011, 8:15 pm
by quizbowl
Nope. Try again!

Re: Rocks and Minerals Question Marathon

Posted: December 11th, 2011, 6:33 am
by tuftedtitmouse12
bituminous coal
used for smithing and coking
named after....dunno :(

Re: Rocks and Minerals Question Marathon

Posted: December 11th, 2011, 7:15 am
by quizbowl
tuftedtitmouse12 wrote:
bituminous coal
used for smithing and coking
named after....dunno :(
Nope!

Re: Rocks and Minerals Question Marathon

Posted: December 11th, 2011, 8:27 am
by fishman100
[hide]|Goethite?
Named after Johann Wolfgang von Goethe
Used as an iron ore[/hide]

Re: Rocks and Minerals Question Marathon

Posted: December 11th, 2011, 8:44 am
by quizbowl
fishman100 wrote:[hide]|Goethite?
Named after Johann Wolfgang von Goethe
Used as an iron ore[/hide]
Yes!

Re: Rocks and Minerals Question Marathon

Posted: December 11th, 2011, 4:38 pm
by fishman100
[img]http://tinyurl.com/bv3c5a8[/img]
How did you ID the specimen?

Re: Rocks and Minerals Question Marathon

Posted: December 11th, 2011, 5:09 pm
by PacificGoldenPlover
Phyllite? I looked for the shininess coupled with grooves?

Re: Rocks and Minerals Question Marathon

Posted: December 11th, 2011, 5:55 pm
by fishman100
PacificGoldenPlover wrote:
Phyllite? I looked for the shininess coupled with grooves?
Correct! Good job.

Re: Rocks and Minerals Question Marathon

Posted: December 11th, 2011, 6:31 pm
by PacificGoldenPlover
[img]http://geology.com/rocks/pictures/gabbro-380.jpg[/img]