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This Specimen has been sold.
HERE ARE SOME OTHER SIMILAR FOSSILS FOR SALE
3.1" Polished Black Opal Sphere - Madagascar
This is a 3.1" black opal sphere crafted in Madagascar. Comes with an acrylic ring stand.
"Black Opal" is a trade name for a variety of an amorphous, black-brown silica mineral, which in this case is collected from Madagascar. This material doesn't have the opalescent effect that you would see in high quality hydrated amorphous silica (opal), but is has its own beauty.
SPECIES
Amorphous Quartz (Common Opal)
LOCATION
Madagascar
SIZE
3.1" wide
CATEGORY
SUB CATEGORY
ITEM
#277848
