Gray Willemite- Franklin, New Jersey
Normal light
Shortwave ultraviolet
This Willemite specimen looks like a piece of slate under normal light.
Physically, it doesn't have layers like slate does, but it has a grain structure
which runs in one direction similar to that of slate. Under shortwave
ultraviolet, you can see it's solid Willemite.
The size of this specimen is 3 1/2" long X 3" wide X 1 1/8" thick.

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