Rocks and Minerals Question Marathon

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hexagonaria
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Re: Rocks and Minerals Question Marathon

Post by hexagonaria » October 29th, 2012, 7:20 am

Haven't done this in a while, so bear with me here...

I think it is bituminous, which has a lower carbon content than anthracite, and a higher carbon content than lignite. Also, bituminous is more economically important than the other types. As far as identification goes, bituminous is a lot shinier and harder than lignite, and softer and duller than anthracite.
DFTBA

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Re: Rocks and Minerals Question Marathon

Post by havendude » October 30th, 2012, 10:31 am

Correct. Your turn.
---Regionals---States---Nats

Rocks and Minerals---2nd---15th---11th
Disease Detectives---1st---3rd---27th
Optics---1st---NA---NA
Crime Busters---2nd---NA---NA
Compute This---NA---32---15th

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Re: Rocks and Minerals Question Marathon

Post by XJcwolfyX » November 4th, 2012, 1:44 pm

Medal Counter: 73

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hotchocolate123
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Re: Rocks and Minerals Question Marathon

Post by hotchocolate123 » November 4th, 2012, 5:12 pm

Is it Pegmatite?
2014 Nationals:
Heredity (5th) Water Quality (7th)
2013 Nationals:
Forestry (4) Heredity (9) Rocks & Minerals (5)
2012 Nationals:
Forestry (3) Rocks & minerals (7) Aquifers (13)

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Re: Rocks and Minerals Question Marathon

Post by havendude » November 4th, 2012, 7:23 pm

Granite?
---Regionals---States---Nats

Rocks and Minerals---2nd---15th---11th
Disease Detectives---1st---3rd---27th
Optics---1st---NA---NA
Crime Busters---2nd---NA---NA
Compute This---NA---32---15th

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Re: Rocks and Minerals Question Marathon

Post by XJcwolfyX » November 11th, 2012, 7:37 am

Pegmatite! :D
Your turn!
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Re: Rocks and Minerals Question Marathon

Post by hotchocolate123 » November 11th, 2012, 5:00 pm

[img]http://www.geoprime.com/mineral/Images/hornblende.jpg[/img]
2014 Nationals:
Heredity (5th) Water Quality (7th)
2013 Nationals:
Forestry (4) Heredity (9) Rocks & Minerals (5)
2012 Nationals:
Forestry (3) Rocks & minerals (7) Aquifers (13)

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Re: Rocks and Minerals Question Marathon

Post by havendude » November 12th, 2012, 3:01 pm

hotchocolate123 wrote:
[img]http://www.geoprime.com/mineral/Images/hornblende.jpg[/img]
It looks like either anthracite or hornblende, but probably the latter.
---Regionals---States---Nats

Rocks and Minerals---2nd---15th---11th
Disease Detectives---1st---3rd---27th
Optics---1st---NA---NA
Crime Busters---2nd---NA---NA
Compute This---NA---32---15th

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Re: Rocks and Minerals Question Marathon

Post by hotchocolate123 » November 12th, 2012, 6:23 pm

Hmmm.. It's hornblende :)
Your turn! :D
2014 Nationals:
Heredity (5th) Water Quality (7th)
2013 Nationals:
Forestry (4) Heredity (9) Rocks & Minerals (5)
2012 Nationals:
Forestry (3) Rocks & minerals (7) Aquifers (13)

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Re: Rocks and Minerals Question Marathon

Post by havendude » November 14th, 2012, 6:20 pm

Image

Identify
---Regionals---States---Nats

Rocks and Minerals---2nd---15th---11th
Disease Detectives---1st---3rd---27th
Optics---1st---NA---NA
Crime Busters---2nd---NA---NA
Compute This---NA---32---15th

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