Rocks and Minerals Question Marathon

tornado guy · Postby **tornado guy** » November 11th, 2011, 8:00 am

What is this mineral? Its composition (Click to Show Hidden Text)

[img]http://www.mii.org/Minerals/Minpics1/FeldsparMicrocline.jpg[/img]

Wadhk · Postby **Wadhk** » November 11th, 2011, 6:34 pm

Wild Guess (Click to Show Hidden Text)

Feldspar? K Al Si3 O8

tornado guy · Postby **tornado guy** » November 12th, 2011, 12:45 pm

Wild Guess (Click to Show Hidden Text)
Feldspar? K Al Si3 O8

Correct.

Wadhk · Postby **Wadhk** » November 12th, 2011, 5:16 pm

Someone else can post the next question.

tornado guy · Postby **tornado guy** » November 12th, 2011, 8:55 pm

Identify

Postby **PacificGoldenPlover** » November 12th, 2011, 10:11 pm

Anthracite?

quizbowl · Postby **quizbowl** » November 14th, 2011, 5:17 pm

I can verify that as anthracite. Your go, PGP.

tornado guy · Postby **tornado guy** » November 15th, 2011, 7:50 am

Sorry, I forgot that I posted the last question! Anyhow; you're correct, it's anthracite.

Postby **PacificGoldenPlover** » November 15th, 2011, 8:16 pm

identify (Click to Show Hidden Text)

[img]http://mineralminers.com/html/lepm154.jpg[/img]

yogoperson · Postby **yogoperson** » November 15th, 2011, 9:44 pm

identify (Click to Show Hidden Text)
[img]http://mineralminers.com/html/lepm154.jpg[/img]

I Think Lepidolite?

I CAN'T HIDE THIS. I DUNNO HOW. I'M SORRY.

~Somebody can post for me, I'm going into a hiatus for a few days. ish~