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help identifying small trapped stone

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Found This when i cracked this rock open looks wierd and i have no idea what itcould be any ideas? Found in Montrose,Colorado Wierd Rock

wierd rock 2

asked Mar 9, 2015 by DJandLIMON111 (380 points)

2 Answers

0 votes

The glittering mineral seem like quartz crystals from their triangular terminations, which would be a likely association with agate, which is what it appears the banded material is. Can you post some more photos, especially full view? Also see if you can get some more matrix. Is the area known to have igneous rock?

answered Mar 10, 2015 by hershel (52,800 points)
0 votes

First off, I would say this is a quartz-filled geode. It would seem some mineral seeped into the stone forming the banding but I cannot say it is agate. I cannot say it isn't agate. Agate would be smooth and feel waxy to the touch. Agate is very hard, too. You would not be able to scratch it with a pocket knife. The larger crystals are quartz

answered Mar 10, 2015 by Weasel (58,940 points)

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