🔎 UNIDENTIFIED Chinese Writing Rock near Cle Elum, WA

[airborne1092]

On my latest camping trip to Cle Elum, WA a couple weeks ago, I found two cobbles of Porphyry. one looks to have some coal spinel in the matrix, too.

 

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[ToddsPoint]

Those are nice. The phenocrysts on yours are rod shaped. The porphyry we have has more rounded phenocrysts. Ours came from Canada via the WI glacier. I do lapidary and make pipes from it. One of my favorite type of rock. First one is diabase porphyry and the black one is basalt.