10.95 ct. Michigan Datolite Nodule
Color: Various
Clarity: Opaque
Origin: Michigan
Cut: Polished Slice
Treatments: None
Measurements: 17.3 x 9.5 mm
You may not initially suspect Datolite when looking at this stone, this unusual massive form of this mineral is not common and is quite unknown outside of a few dedicated collectors. Typically Datolite is a completely transparent and colorless (even occasionally light green!) facetable gem. On the shores of Michigan's Lake Superior are found nodules of Datolite that are remarkably unremarkable on the surface - when sliced and polished however these can come alive with superb patterns and colors. These are found in association with Copper deposits in Michigan's upper peninsula so there is actually quite a bit of metallic, native Copper throughout the stone - a dynamic and attractive effect as light plays over the surface. Large and visually striking example.