River Agate Slice
July 2005
Agate is a banded form of chalcedony, a fine-grained quartz. This river agate is from Brazil, cut as a flat slice to show its pattern.
A River Agate Slice from Brazil.
Agate is a banded form of chalcedony, a fine-grained quartz. This river agate is from Brazil, cut as a flat slice to show its pattern.
A River Agate Slice from Brazil.