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2,141 questions

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16,595 users

What is this green rock I found on the beach?

0 votes

This was found in mid-western Washington state at a local beach park

asked Sep 9 by Eclipse (120 points)

3 Answers

0 votes
It could be jasper.
answered Sep 16 by Weasel (55,470 points)
0 votes
To me it looks like impure jade or serpentine. Is it greasy to the touch?
answered Sep 18 by linkisnotzelda (4,890 points)
Not really sure, it doesn't seem greasy to the touch, but it is very smooth
Massive serpentine is my best guess.
0 votes
Another possibility could be celadonite with basalt, if its from the igneous basalt area.
answered Oct 17 by hershel (51,320 points)
That is true, that area is in a basalt area. What beach, may I ask, as that is not to far from where I live, might make a good road trip. :)