Rocks and Minerals Question Marathon

[aznluvsricemhm]

yuss i finally hid it

[aznluvsricemhm]

couldn't resist^_^ (Click to Show Hidden Text)

[img]http://www.galleries.com/minerals/carbonat/dolomite/dolomite.jpg[/img] identify this specimen and it's main system

[quizbowl]

couldn't resist^_^ (Click to Show Hidden Text)

[img]http://www.galleries.com/minerals/carbonat/dolomite/dolomite.jpg[/img] identify this specimen and it's main system

Erm, I think I answered it first, but okay, you can post..
And that's

A nice piece of (Click to Show Hidden Text)

dolomite druze

[tornado guy]

Uh (Click to Show Hidden Text)

I'm pretty sure that the crystal structure points to a gypsum, but I'm not sure what the coloration is from...copper?  I'm thinking that from Malachite....

Yeah, you were right

[aznluvsricemhm]

haha yuppers to quizbowl
n sorry for stealing your...turn to ask a question? xD

[aznluvsricemhm]

oh and also......whats the crystal system? monoclinic? triclinic? orthorhombic? xD

[tornado guy]

Keep the thread alive!!
EDIT: That's better

[hexagonaria]

is it (Click to Show Hidden Text)

topaz?

[tornado guy]

is it (Click to Show Hidden Text)

topaz?

No..
(I have a feeling this might be a hard one)

[tuftedtitmouse12]

Dunno? (Click to Show Hidden Text)

selenium?