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Magikarpmaster629 wrote:

Mp3nguin__ wrote: Only need to ID

Hmm I'll say it's oolitic limestone

Correct! Your turn

1. ID
2. How is this rock classified? Be specific.
3. How is this rock formed?

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

dechirico wrote: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.

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

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

Yep, non clastic chemical to be more specific. Your turn!

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

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

Hmm, 1. Albite plagioclase 2. Felsic igneous rock

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?

Magikarpmaster629 wrote: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