[Rockhounds] Unknown Oolitic?
Jay Bates
jaybates at rcn.com
Thu Feb 19 16:58:10 PST 2009
Carolyn,
I think we have to assume that John knows how to test for hardness, even
after a few beers. I would think if it was a surface coating he would
have also tested the underlying material which is also exposed. If Tim
says it looks like some Oregon material he most likely is right. The
material I referenced was from New York just to show the form of
botryoidal travertine (calcite) On the other hand if you know more
about John's drinking habits than I do, I apologize. .
Carolyn Reynard wrote:
> John the specimen looks a lot like Carnelian, a orange-brown chalcedony
> with a hardness of 7. Jasper would be a seven also.
> Carolyn Reynard
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