Rocks and Minerals B/C

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darkdeserthighway
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Re: Rocks and Minerals B/C

Postby darkdeserthighway » November 10th, 2013, 10:01 am

Last year was my first year in SciOly, and at my first invitational, there was apparently a decent-sized piece of uncut, unpolished diamond. I say apparently because it was at a station with four other clear-white minerals and I was unable to identify it.
Was anything provided at that station to help with ID?
I mean, there were distinct differences in the samples, my partner and I just weren't prepared enough to recognize it. Plus, we did bring our own magnifying glass, which was somewhat helpful.
I mean, was glass/streak plate provided?
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2014 States- Rocks and Minerals 3rd
2013 States- Rocks and Minerals 7th, Water Quality 9th
2012 States- Rocks and Minerals 10th

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Re: Rocks and Minerals B/C

Postby ali941 » November 10th, 2013, 11:47 am

I mean, there were distinct differences in the samples, my partner and I just weren't prepared enough to recognize it. Plus, we did bring our own magnifying glass, which was somewhat helpful.
I mean, was glass/streak plate provided?
From what I remember, yes. Most stations had streak plates.
2013 Events:
Sounds of Music, Rocks and Minerals, Dynamic Planet, Metric Mastery: 2nd, Regionals

Hopeful 2014 events:
Dynamic Planet, Rocks and Minerals, Technical Problem Solving, Designer Genes, Astronomy*, MagLev*

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darkdeserthighway
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Re: Rocks and Minerals B/C

Postby darkdeserthighway » November 12th, 2013, 7:04 pm

oh, ok
2015 States- Invasives 10th, Fossils 12th
2014 States- Rocks and Minerals 3rd
2013 States- Rocks and Minerals 7th, Water Quality 9th
2012 States- Rocks and Minerals 10th

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Re: Rocks and Minerals B/C

Postby thedarknight » December 1st, 2013, 4:52 pm

Does anybody who has done this event before know how "economic importance" will be on the exam? Would this be uses of the rock/mineral on the test or something else?

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Re: Rocks and Minerals B/C

Postby hotchocolate123 » December 1st, 2013, 4:55 pm

Economic Importance is usually about how the rock/mineral is used and how it's important to the economy and our lives. For example, one of the economic importance's of bauxite is that it is the ore of aluminum.
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 B/C

Postby thedarknight » December 1st, 2013, 4:58 pm

Makes sense...and also what would "clues to past environments" entail of?

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Re: Rocks and Minerals B/C

Postby hotchocolate123 » December 1st, 2013, 5:03 pm

It means that like some minerals/rocks provide clues as to how the land was thousands of years ago. For example, specific types of coal may indicate that the land was once a dense swamp filled area.
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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Rocks and Minerals B

Postby 19puppylover » December 5th, 2013, 11:36 am

Why is Goethite and Limonite together on the List for 2014, but are pretty much completely different???? :?

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Re: Rocks and Minerals B/C

Postby maxiscool1127 » December 7th, 2013, 9:02 am

Why is Goethite and Limonite together on the List for 2014, but are pretty much completely different???? :?

They have pretty much the same composition.... :D

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Re: Rocks and Minerals B/C

Postby Flavorflav » December 7th, 2013, 10:37 am

In fact, Limonite is no longer an actual mineral but a term used for a group of minerals, of which Goethite is the most common.


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