any thoughts on this awesome find?

[RockAli]

Found in Az. This rock has so many fascinating features it is amazing to look. At first I was thinking sedimentary but I need some further advice. Thank you

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[waxy luster]

If you like that, you'll love this - similar material. Also curious as to timeline of how these come to be.

http://www.treasurenet.com/forums/showpost.php?p=3871011


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