They can have a similar surface texture (and that is probably not just coincidence, there seems to be evidence that they interconvert given the right circumstances) but that waxy luster and wear/break pattern is very classically agatey.
Post subject: Re: Help Identifying Orange Stone???
Posted: Mon Nov 09, 2020 3:55 pm
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Joined: Tue Apr 05, 2016 7:58 pm Posts: 1424 Location: San Marcos, CA
Yes very true, at first glance in pic #1 the fracture lines made me think it maybe Mx opal, but your right if opal it would have a more glassy conchoidal appearance.
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