Re: Rocks and Minerals Question Marathon
Posted: January 17th, 2012, 5:44 pm
That looks very rough to be marble. But I suppose it could be.hexagonaria wrote:Maybe marble. All white from calcite and dolomite
Scioly.org
Science Olympiad Student Center
https://scioly.org:443/forums/
Rocks and Minerals Question Marathon
Page 47 of 89
Re: Rocks and Minerals Question Marathon
Posted: January 17th, 2012, 6:20 pm
I agree. I thought it was chalk at first.tornado guy wrote:That looks very rough to be marble. But I suppose it could be.hexagonaria wrote:Maybe marble. All white from calcite and dolomite
Re: Rocks and Minerals Question Marathon
Posted: January 17th, 2012, 6:40 pm
Limestone Oolite, filled with calcite?
Re: Rocks and Minerals Question Marathon
Posted: January 17th, 2012, 7:47 pm
Nope, not any sort of Limestone, nor is it marble. Dang, was not expecting it to be this hard. Does the bottom inch not help anyone? Eh... must think of better clue.
Re: Rocks and Minerals Question Marathon
Posted: January 17th, 2012, 8:57 pm
Some type of light sandstone?
Re: Rocks and Minerals Question Marathon
Posted: January 18th, 2012, 4:19 am
Yup. Sandstone. Since it took awhile just to get the rock I'll just give the mineral to you: it's quartz-rich sandstone.
Re: Rocks and Minerals Question Marathon
Posted: January 18th, 2012, 5:51 pm
Identify this mineral and what other mineral gives it the color?
Anyone.......?
Anyone.......?
Re: Rocks and Minerals Question Marathon
Posted: January 21st, 2012, 10:19 am
I am 99.9% sure I'm wrong.....the other .1% is my imagination ^_^
acicular fluorite with....fluorite? xD no clue whatsoever
*how do you hide your answer?
acicular fluorite with....fluorite? xD no clue whatsoever
*how do you hide your answer?
Re: Rocks and Minerals Question Marathon
Posted: January 21st, 2012, 10:26 am
I'm pretty sure that the crystal structure points to a gypsum, but I'm not sure what the coloration is from...copper? I'm thinking that from Malachite....
Re: Rocks and Minerals Question Marathon
Posted: January 21st, 2012, 3:00 pm
...is the answer Green gypsum crystal with copper ion?