Rocks & Minerals B/C 2017

Test your knowledge of various Science Olympiad events.
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Magikarpmaster629
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Rocks & Minerals B/C 2017

Postby Magikarpmaster629 » May 24th, 2016, 1:56 pm

Never too early to get started! This is also a fair place for discussion of the event.

We should be using this rocks and minerals list as the list for next year, since most ID lists don't change very much over the years.

Image
1. What mineral family does this specimen belong to?
2. What specific mineral is it?
3. What is its chemical composition?
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Re: Rocks & Minerals B/C 2017

Postby a boy » May 24th, 2016, 2:42 pm

1. silicates
2. quartz [crystal]
3. SiO2
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Re: Rocks & Minerals B/C 2017

Postby Magikarpmaster629 » May 24th, 2016, 3:13 pm

1. silicates
2. quartz [crystal]
3. SiO2
I was thinking 1 would be quartz and 2 would be smoky quartz; but I haven't done rocks before and your answer sounds better, so it's your turn.
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Re: Rocks & Minerals B/C 2017

Postby azuritemalachite » May 24th, 2016, 5:09 pm

1. silicates
2. quartz [crystal]
3. SiO2
I was thinking 1 would be quartz and 2 would be smoky quartz; but I haven't done rocks before and your answer sounds better, so it's your turn.
Well smokey quartz isn't usually a variety we have to study and quartz is still a mineral not a family even though there are many variations of it. Rocks is the best; you should definitely do it next year! :)
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Re: Rocks & Minerals B/C 2017

Postby SenseiSushi » May 24th, 2016, 8:23 pm

Dang, I've been waiting for this for two long years...
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Re: Rocks & Minerals B/C 2017

Postby a boy » May 24th, 2016, 9:58 pm

1. silicates
2. quartz [crystal]
3. SiO2
I was thinking 1 would be quartz and 2 would be smoky quartz; but I haven't done rocks before and your answer sounds better, so it's your turn.
oops you're probably right about the smoky quartz I haven't done this in too long

Image

1. Identify
2. Name a polymorph of this specimen
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Re: Rocks & Minerals B/C 2017

Postby SenseiSushi » May 24th, 2016, 11:02 pm


Image

1. Identify
2. Name a polymorph of this specimen
1. Calcite 
2. Aragonite
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Re: Rocks & Minerals B/C 2017

Postby a boy » May 25th, 2016, 5:34 am

That's correct, your turn!
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Re: Rocks & Minerals B/C 2017

Postby Jaol » May 25th, 2016, 12:39 pm

Does everyone already have resources? :( :( It kinda feels like it :( :(
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Re: Rocks & Minerals B/C 2017

Postby Magikarpmaster629 » May 29th, 2016, 12:42 pm

I've noticed that almandine is described as having a vitreous or resinous luster. However, some pictures like this one are clearly opaque; not transparent like a vitreous luster is normally. Should I go with vitreous or try to describe it myself, since I don't know what kind of luster would fit that picture?
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