Wednesday, April 27, 2011

[Geology2] Re: Greenish rock with veins of green "glass"

Thank you for your replies, Victor!

I am familiar with serpentine, which is common in California; but it's appearance varies widely enough I've never been sure this rock (er, it sure feels like a rock) is serpentine.

"Industrial waste" yikes! I don't know how to "check it's properties" (my geological knowledge is far more academic than practical), any advice please?

--- In geology2@yahoogroups.com, Victor Healey <4.vic.healey@...> wrote:
>
> It looks like industrial waste. Did you check its properties? Something
> similar has been only seen at the scene of nuclear explosions where the sand
> and rocks fused. I forget the actual name for it but it was green.
>
> On Tue, Apr 26, 2011 at 7:54 PM, coyote272 <coyote2@...> wrote:
>
> >
> >
> > It's light green, and had several deep veins of (what looks like) green
> > "glass" inside it. What is it?
> >
> > I found the rock on the beach about halfway between San Francisco and Santa
> > Cruz, California. I can't imagine it could be `sea glass' since it's
> > *inside* the rock (which is also green).
> >
> > A few photos are in a (4MB) zip file at
> > https://rcpt.yousendit.com/1105418315/cae4fbf68c0c0cd58551738f0527f9f5?cid=tr-cv-web-stnd-dl-literec-null-c-19073&s=19073
> > "side.jpg" has red arrows pointing to the two veins of green "glass"
> >
> >
> >
>


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