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What minerals occur most often within a Mexican coconut geode?

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I just bought this at a bazaar as a Mexican coconut geode, what minerals do you think it contains? I know the picture isn’t the best, but just some broad ideas would be nice. Thanks in advance!

After further investigation, ramsdellite keeps popping up. It appears to be pretty rare, but the pictures match. I don't have a lot of experience with geodes, what do you think?

asked Dec 1, 2018 by linkisnotzelda (5,130 points)
edited Dec 3, 2018 by linkisnotzelda

1 Answer

0 votes
Most likely quartz or agate, or both.
answered Dec 2, 2018 by Weasel (56,180 points)
I just thought the gray coloring was a bit strange, like goetite ( I think I spelled that wrong) or something