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Author Topic: What kind of rock is this?  (Read 1279 times)

Offline LDennis24

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What kind of rock is this?
« on: December 26, 2023, 05:35:16 PM »
Found this rock on the beach and decided I had to have it. Almost gave me a hernia picking it up! Awkward shape and weighed over 100 lbs.  It's really teal colored and almost translucent like jade would be.

Offline Boss .300 winmag

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Re: What kind of rock is this?
« Reply #1 on: December 26, 2023, 05:41:32 PM »
 Kind be a low grade jade.
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Offline SuperX

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Re: What kind of rock is this?
« Reply #2 on: December 26, 2023, 05:46:21 PM »
Jasper?

Offline callturner

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Re: What kind of rock is this?
« Reply #3 on: December 26, 2023, 06:02:18 PM »
Its a leaver right, Leaver right there! :chuckle:

Online wadu1

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Re: What kind of rock is this?
« Reply #4 on: December 26, 2023, 06:10:33 PM »
Looks like chatoyant nephrite aka Northwest Jade?
"a fronte praecipitium a tergo lupi"

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Re: What kind of rock is this?
« Reply #5 on: December 26, 2023, 06:27:46 PM »
Its a leaver right, Leaver right there! :chuckle:
My daughter has a BS in archeology she would call it an AGDR. Another God Darn Rock :chuckle:
"a fronte praecipitium a tergo lupi"

Offline 3boys

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Re: What kind of rock is this?
« Reply #6 on: May 29, 2024, 09:55:34 PM »
What beach?

Offline Knocker of rocks

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Re: What kind of rock is this?
« Reply #7 on: May 29, 2024, 09:56:37 PM »
I hate identifying rocks on the web, there is so much you canít see. Salt water also turns the surficial color orange or green.

By the beach, I assume the Washington coast?  Rocks there are surficial greywacke seds and lavas of the crescent. Deeper portions of the crescent are also exposed in some places that Roland tabor refered to as ophiolite like.   

All that said, it looks like a green fine grained andesitic clast in a coarse matrix like a sand. Submarine landslides can also jumble all those ingredients together.

Offline Call em in

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Re: What kind of rock is this?
« Reply #8 on: May 29, 2024, 10:17:27 PM »
 :dunno:

 


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