1. Malachite and Azurite, 2. monoclinic
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Re: Rocks and Minerals Question Marathon
2014 Events: Entomology, Materials Science, Rocks and Minerals, Scrambler
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Re: Rocks and Minerals Question Marathon
Yup! maybe we should show why though, so we can see reasoning. So, why?Wadhk wrote:1. Malachite and Azurite, 2. monoclinic
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Re: Rocks and Minerals Question Marathon
I like to think of Malachite being "fuzzy" (or circular, ringed, and very smooth) and green. Azurite is blue and "rocky" and it comes along with Malachite, just like the picture.


Identify both and describe how you arrived at your conclusion.


Identify both and describe how you arrived at your conclusion.
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Re: Rocks and Minerals Question Marathon
Ummm the first would be apatite because... well, heres my thought process --> 1) if it's blue it's either azurite, apatite, celestite, fluorite, or tourmaline 2) I ruled out azurite because azurite is usually opaque where this mineral is translucent 3) celestite, fluorite, and tourmaline can't possibly be it because of their cleavage and crystal habit 4) therefor it's azurite
I did the same process for the second but sodalite just popped into my head because sodalite is opaque and dark blue in color
I did the same process for the second but sodalite just popped into my head because sodalite is opaque and dark blue in color
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Re: Rocks and Minerals Question Marathon
1st image is not azurite.
2nd image was correct in your response.
2nd image was correct in your response.
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Re: Rocks and Minerals Question Marathon
sorry, I meant apatite 

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Re: Rocks and Minerals Question Marathon
Sorry for the long wait

[img]http://www.johnbetts-fineminerals.com/jhbnyc/gifs/41037.jpg[/img]
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Re: Rocks and Minerals Question Marathon
Topaz
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Re: Rocks and Minerals Question Marathon
Yes ! 
Your turn

Your turn
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