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Re: Rocks and Minerals Question Marathon

Posted: April 18th, 2012, 8:11 pm
by Wadhk
Yup!

Re: Rocks and Minerals Question Marathon

Posted: April 23rd, 2012, 7:35 pm
by solakmagic
States is in 4 days! REVIVE!!

Image

Re: Rocks and Minerals Question Marathon

Posted: April 24th, 2012, 5:12 pm
by quizbowl
Yup!
[img]http://i.imgur.com/IFkje.jpg[/img]
1. In which environments does this form?
2. Name an industrial use for it.
3. Melting point of a pure sample of this substance?

Re: Rocks and Minerals Question Marathon

Posted: April 24th, 2012, 6:08 pm
by solakmagic
Yup!
[img]http://i.imgur.com/IFkje.jpg[/img]
1. In which environments does this form?
2. Name an industrial use for it.
3. Melting point of a pure sample of this substance?
Topaz
1) Igneous; granite pegmatites and rhyolite.  Also found in sed. alluvial deposits
2) Abrasive
3) 1000 Celsius...?

Re: Rocks and Minerals Question Marathon

Posted: April 25th, 2012, 4:20 am
by quizbowl
Incorrect.

Re: Rocks and Minerals Question Marathon

Posted: April 26th, 2012, 4:33 pm
by LoopQuantumGravity
Quartz (citrine)
1. Magma, Saturated silica solutions
2. Semiprecious gemstone
3. 1427 C

Re: Rocks and Minerals Question Marathon

Posted: April 26th, 2012, 7:58 pm
by quizbowl
Quartz (citrine)
1. Magma, Saturated silica solutions
2. Semiprecious gemstone
3. 1427 C
Nope!

Re: Rocks and Minerals Question Marathon

Posted: April 27th, 2012, 3:13 pm
by Kazen
Hello!

Fluorite:
1. Hydrothermal
2. Smelting and Steel Production
3. 1360 degrees celsius

Re: Rocks and Minerals Question Marathon

Posted: April 27th, 2012, 4:36 pm
by quizbowl
Hello!

Fluorite:
1. Hydrothermal
2. Smelting and Steel Production
3. 1360 degrees celsius
Indeed it is! Also you could answer #2 with flux.

Re: Rocks and Minerals Question Marathon

Posted: April 27th, 2012, 8:01 pm
by Kazen
Image
ID this mineral and its chemical formula. (:

(and thanks for the tip~)