A ~100 Ma intrusive igneous rock that is characteristic of Cretaceous granitoids of the Sierra Nevada Batholith.
How many minerals can you identify?
If you are ever in northern California. Let me
know I am in Willits and I have museum grade
amber. Clark clarks@pacific,net
I'd love to be able to show you, but I
don't think I've got any amber. :-(
Amazing!! What would a piece of amber look like?
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