Rocks and Minerals Question Marathon

inluvwyth_WANTED
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Re: Rocks and Minerals Question Marathon

Post by inluvwyth_WANTED » April 26th, 2013, 8:58 pm

I would say Calcite and Quartz....I honestly don't know.

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Re: Rocks and Minerals Question Marathon

Post by queenelf » April 28th, 2013, 7:25 am

inluvwyth_WANTED wrote:I would say Calcite and Quartz....I honestly don't know.
One of those is correct keep guessing :)

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Re: Rocks and Minerals Question Marathon

Post by syo_astro » April 28th, 2013, 11:18 am

1. Was it not quartz and albite?  It would make sense that they both form in igneous environments, and they do commonly occur together, for example in plutonic rocks.  
2. If it is that then their name origin would be albus or pure white for albite and twarc or hard for quartz
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Re: Rocks and Minerals Question Marathon

Post by queenelf » April 28th, 2013, 2:47 pm

syo_astro wrote:
1. Was it not quartz and albite? It would make sense that they both form in igneous environments, and they do commonly occur together, for example in plutonic rocks. 
2. If it is that then their name origin would be albus or pure white for albite and twarc or hard for quartz
Okay the quartz part is right, and you're on the right track with the white minerals. To clarify, the quartz are the actual crystals and the second mineral is the one coating the quartz. This specimen was from my coach's collection, so it obviously is something not seen normally.

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Re: Rocks and Minerals Question Marathon

Post by inluvwyth_WANTED » April 28th, 2013, 3:18 pm

Is the coating possibly a rock? It looks way too powdery to be a mineral, and it looks nothing like kaolinite.

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Re: Rocks and Minerals Question Marathon

Post by queenelf » May 1st, 2013, 11:54 am

Actually that's what it is! Its a weird specimen and if you can complete the rest of the question your turn :D

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Re: Rocks and Minerals Question Marathon

Post by ali941 » May 1st, 2013, 6:16 pm

Is it opal?  Opal is sometimes considered a mineral, and sometimes not.  Opal comes from opalle which comes from opalus which comes from opallios which comes from upala-s, meaning, gem.
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Re: Rocks and Minerals Question Marathon

Post by inluvwyth_WANTED » May 7th, 2013, 4:47 pm

I'll revive this since no one's been on here for a while.
[img]http://www.mineralmasterpiece.com/images/Specimens/P1/MMB-604xL2view_Fluorite.jpg[/img]

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Re: Rocks and Minerals Question Marathon

Post by vulcanologist1234 » May 7th, 2013, 5:59 pm

fluorite but is there another one
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Re: Rocks and Minerals Question Marathon

Post by inluvwyth_WANTED » May 8th, 2013, 7:57 am

How'd you know? Correct...:)

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