I have some rocks that are like a lova but not they have a lot of craters and pits and are saped funny. What are they? In northwest Arizona..
2007-03-22 12:53:40 · 3 answers · asked by laryngectome 1 in Science & Mathematics ➔ Earth Sciences & Geology
Well I did a acid test and they didnot fizz. they seam to have some sparkle (like cristel) and they are one kinda gray and one darker.I think from help from a fremd that it might be weathered limestome- There all nice ones. Thank you
2007-03-22 17:51:49 · update #1
Since part of Arizona is in the Basin and Range, which is an extensional regime, it very well could be volcanic pumice. What color are they? Do they have any fragments or minerals in them? If so, what is the characteristics of these fragments or minerals. Geology is a descriptive science, and a little description goes a long way in determining the petrology of a rock.
2007-03-22 17:36:25 · answer #1 · answered by Amphibolite 7 · 0⤊ 0⤋
Pumice or scoria? More information wold be helpful.
2007-03-22 22:20:31 · answer #2 · answered by evokid 3 · 0⤊ 0⤋
it could be an oxidised sulfide. I would need to see a picture to be sure
2007-03-22 20:04:12 · answer #3 · answered by Professor Kitty 6 · 0⤊ 0⤋