Rocks and Minerals Question Marathon

aznluvsricemhm · Post by **aznluvsricemhm** » March 25th, 2012, 1:13 pm

or maybe it's hornblende~ornamental stone

starfield · Post by **starfield** » March 26th, 2012, 1:07 pm

? (Click to Show Hidden Text)

Gneiss? used for building, as flooring or countertops, also used for gravestones

solakmagic · Post by **solakmagic** » April 5th, 2012, 6:06 am

Answer (Click to Show Hidden Text)

Tremolite; used mainly as asbestos, also can be cut as gemstones, and is found in high pressure gauges

The thread is dying!

quizbowl · Post by **quizbowl** » April 5th, 2012, 6:33 am

solakmagic wrote:
Answer (Click to Show Hidden Text)
Tremolite; used mainly as asbestos, also can be cut as gemstones, and is found in high pressure gauges
The thread is dying!

Correct!

solakmagic · Post by **solakmagic** » April 5th, 2012, 7:38 am

1: Identify the mineral
2: State the reasoning you used to identify the mineral
3: How is this mineral commonly formed?

Paleofreakazoid · Post by **Paleofreakazoid** » April 5th, 2012, 7:53 am

Ummm...

Answer...maybe? (Click to Show Hidden Text)

Citrine, it's yellow and quartzey looking, it's rare to find natural citrine, so it is often heat-treated amythest (which will be browner)

solakmagic · Post by **solakmagic** » April 5th, 2012, 9:41 am

Paleofreakazoid wrote:Ummm...
Answer...maybe? (Click to Show Hidden Text)
Citrine, it's yellow and quartzey looking, it's rare to find natural citrine, so it is often heat-treated amythest (which will be browner)

Nailed it

aznluvsricemhm · Post by **aznluvsricemhm** » April 5th, 2012, 10:00 am

quizbowl wrote:
solakmagic wrote:
Answer (Click to Show Hidden Text)
Tremolite; used mainly as asbestos, also can be cut as gemstones, and is found in high pressure gauges
The thread is dying!
Correct!

er...didn't I also put tremolite? Oh well... nice to know I was correct.

Anyway, how to you hide your answer?

solakmagic · Post by **solakmagic** » April 5th, 2012, 1:15 pm

[hide] Title | what you want to keep hidden [/hiRde] - do that exactly, but omit the capital R between the i and d in hide.

Paleofreakazoid · Post by **Paleofreakazoid** » April 5th, 2012, 5:57 pm

1. Identify
2. State the reasoning you used to identify the mineral
3. How does it form?
4. What country is the top producer of this rock/mineral?

Scioly.org

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