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by eox
February 10th, 2013, 1:40 pm
Forum: 2013 Study Events
Topic: Rocks and Minerals Question Marathon
Replies: 690
Views: 57399

Re: Rocks and Minerals Question Marathon

yup, its goethite
darkdeserthighway's turn
by eox
February 9th, 2013, 2:32 am
Forum: 2013 Study Events
Topic: Rocks and Minerals Question Marathon
Replies: 690
Views: 57399

Re: Rocks and Minerals Question Marathon

eh, i feel bad. but i guess ill comply.
[img]http://www.fybertech.com/4thread/sci_4058057/1322030395185.jpg[/img]
by eox
February 7th, 2013, 7:38 pm
Forum: 2013 Study Events
Topic: Rocks and Minerals Question Marathon
Replies: 690
Views: 57399

Re: Rocks and Minerals Question Marathon

It seems to have the same luster as feldspar, and its found in most granites? had to check the binder :/
by eox
February 7th, 2013, 7:14 pm
Forum: 2013 Study Events
Topic: Rocks and Minerals Question Marathon
Replies: 690
Views: 57399

Re: Rocks and Minerals Question Marathon

:?|is this orthoclase? the gem variety of feldspar? I only know this because i think ive seen this exactly picture before :oops: . when it says on the list feldspar(orthoclase), does that mean we have to know both, or just feldspar. Can anyone give me a few qualities of orthoclase that make it iden...
by eox
February 7th, 2013, 2:30 pm
Forum: 2013 Study Events
Topic: Rocks and Minerals Question Marathon
Replies: 690
Views: 57399

Re: Rocks and Minerals Question Marathon

is this diamond? with a hardness of 10.
by eox
January 28th, 2013, 5:42 pm
Forum: 2013 Study Events
Topic: Rocks and Minerals Question Marathon
Replies: 690
Views: 57399

Re: Rocks and Minerals Question Marathon

Gotta be alabaster
correct, your turn
by eox
January 28th, 2013, 3:43 pm
Forum: 2013 Study Events
Topic: Rocks and Minerals Question Marathon
Replies: 690
Views: 57399

Re: Rocks and Minerals Question Marathon

[img]http://skywalker.cochise.edu/wellerr/mineral/gypsum/6gypsum-alabaster146a.jpg[/img]
by eox
January 27th, 2013, 8:48 pm
Forum: 2013 Study Events
Topic: Rocks and Minerals Question Marathon
Replies: 690
Views: 57399

Re: Rocks and Minerals Question Marathon

right, But I'm looking for a few more varieties, what is the red, pink-purple, clear-white, yellow, and greenish-yellow varieties called?
red - red emerald, pink-purple - morganite, clear - goshenite, yellow - golden beryl, green-yellow - heliodor?
by eox
January 27th, 2013, 5:46 pm
Forum: 2013 Study Events
Topic: Rocks and Minerals Question Marathon
Replies: 690
Views: 57399

Re: Rocks and Minerals Question Marathon

I will go ahead and post for spartymavs...
[img]http://www.minerals.net/MineralImages/beryl-heliodor-yellow-brazil.jpg[/img]
im pretty sure its beryl. emerald and i think aquamarine come from the green and blue varieties, respectively
by eox
January 24th, 2013, 10:14 pm
Forum: 2013 Study Events
Topic: Rocks and Minerals Question Marathon
Replies: 690
Views: 57399

Re: Rocks and Minerals Question Marathon

Silver. Found in volcanic basalt rocks and in hydrothermal veins and mesothermal veins. Distinguishing characteristics are its interesting crystal habit, tarnish, ductility, and conductivity
agreed

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