Rocks & Minerals B/C

Test your knowledge of various Science Olympiad events.
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Mp3nguin__
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Re: Rocks & Minerals B/C

Postby Mp3nguin__ » April 6th, 2017, 7:35 am

Only need to ID
Hmm I'll say it's oolitic limestone
Correct! Your turn :)

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Re: Rocks & Minerals B/C

Postby Magikarpmaster629 » April 6th, 2017, 8:04 am

Image
1. ID
2. How is this rock classified? Be specific.
3. How is this rock formed?
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Re: Rocks & Minerals B/C

Postby dechirico » April 6th, 2017, 8:36 pm

Let's hope this is right: 1. Travertine 2. Sedimentary (limestone) 3. Deposits by mineral springs

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Re: Rocks & Minerals B/C

Postby Magikarpmaster629 » April 7th, 2017, 11:15 am

Let's hope this is right: 1. Travertine 2. Sedimentary (limestone) 3. Deposits by mineral springs
Hmm, good on 1 and 3 but I'm looking for something more specific for 2. Think clastic/nonclastic.
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Re: Rocks & Minerals B/C

Postby dechirico » April 7th, 2017, 11:31 am

Ah, that makes sense. Answer below: 2. Nonclastic-- it's formed through evaporation

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Re: Rocks & Minerals B/C

Postby Magikarpmaster629 » April 7th, 2017, 12:09 pm

Ah, that makes sense. Answer below: 2. Nonclastic-- it's formed through evaporation
Yep, non clastic chemical to be more specific. Your turn!
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Re: Rocks & Minerals B/C

Postby dechirico » April 7th, 2017, 12:38 pm

Awesome! Now, next question:
1. ID the mineral. 2. What kind of rocks does this specimen most widely occur in?
Image

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Re: Rocks & Minerals B/C

Postby Magikarpmaster629 » April 9th, 2017, 4:26 pm

Awesome! Now, next question:
1. ID the mineral. 2. What kind of rocks does this specimen most widely occur in?
Image
Hmm, 1. Albite plagioclase 2. Felsic igneous rock
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Re: Rocks & Minerals B/C

Postby Magikarpmaster629 » April 13th, 2017, 7:33 pm

While we're waiting on that, here's a nationals mineral:
Image
1. ID the red-brown vitreous mineral (not the metallic one it's on)
2. What is this commonly an ore of?
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Re: Rocks & Minerals B/C

Postby dxu46 » April 14th, 2017, 7:38 am

While we're waiting on that, here's a nationals mineral:
Image
1. ID the red-brown vitreous mineral (not the metallic one it's on)
2. What is this commonly an ore of?
Is this Zircon? 1. Zircon 2. Zirconium

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Re: Rocks & Minerals B/C

Postby Magikarpmaster629 » April 14th, 2017, 8:24 am

While we're waiting on that, here's a nationals mineral:

1. ID the red-brown vitreous mineral (not the metallic one it's on)
2. What is this commonly an ore of?
Is this Zircon? 1. Zircon 2. Zirconium
Right on! :) Your turn.
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Re: Rocks & Minerals B/C

Postby dxu46 » April 14th, 2017, 2:43 pm

Okay....
Image
1. What is the blue mineral?
2. What is the green mineral?
3. Why are these two minerals often found together?

Edit: The image isn't working. Hint: Both minerals have a hardness around 3.5-4

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Re: Rocks & Minerals B/C

Postby Magikarpmaster629 » April 15th, 2017, 6:02 am

Okay....
Image
1. What is the blue mineral?
2. What is the green mineral?
3. Why are these two minerals often found together?

Edit: The image isn't working. Hint: Both minerals have a hardness around 3.5-4
Pfft, who needs images 1. Azurite
2. Malachite
3. Same mineral environment- both formed as secondary minerals in copper deposits
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Re: Rocks & Minerals B/C

Postby dxu46 » April 15th, 2017, 8:15 am

Okay....
Image
1. What is the blue mineral?
2. What is the green mineral?
3. Why are these two minerals often found together?

Edit: The image isn't working. Hint: Both minerals have a hardness around 3.5-4
Pfft, who needs images 1. Azurite
2. Malachite
3. Same mineral environment- both formed as secondary minerals in copper deposits
Correct! Your turn.

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Re: Rocks & Minerals B/C

Postby dechirico » April 15th, 2017, 3:12 pm

Awesome! Now, next question:
1. ID the mineral. 2. What kind of rocks does this specimen most widely occur in?
Image
Hmm, 1. Albite plagioclase 2. Felsic igneous rock
Ahhh, sorry for the delay. You're right, though!


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