Agate (Var: Lake Superior Agate)
Brockway Mountain, Eagle Harbor, Keweenaw County, Michigan, USA
8.9 x 5.8 x 5.8 cm. Although this specimen exhibits a thin "fortification" band, its lack of translucence and its mottled salmon color make it very interesting as a locality piece. Ex. Robert Nowakowski collection. Though the picture doesn't show the backside husk, it was probably chiseled out of the basalt there in the Upper Peninsula. Such ...
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