Rhyolite from the Keweenaw Peninsula
Oct 15, 2015 17:36:44 GMT -5
captbob, unclesoska, and 2 more like this
Post by Jugglerguy on Oct 15, 2015 17:36:44 GMT -5
I'm still not sure exactly what this stuff is, but Chuck's guess was rhyolite. The other possibilities are chert and jasper, but it really doesn't look like other chert I've seen.
This rock is polishes up very nicely. It does, however, sometimes have fractures along the stripes. The only thing to do with these rocks is break them along the fracture. I had forgotten how many small saw scraps were in this batch. I picked some up last summer, and many more this summer because the stable flies weren't trying to devour me this year.
This is the beach that I found these on.
I took this picture of an agate on the beach, but you can see one of these rhyolites directly in front of the agate.
This rock is polishes up very nicely. It does, however, sometimes have fractures along the stripes. The only thing to do with these rocks is break them along the fracture. I had forgotten how many small saw scraps were in this batch. I picked some up last summer, and many more this summer because the stable flies weren't trying to devour me this year.
This is the beach that I found these on.
I took this picture of an agate on the beach, but you can see one of these rhyolites directly in front of the agate.
