This Specimen has been sold.
4.9" Tall, Free-Standing Polished Agate - Madagascar
This is agate from Madagascar which has been hand-polished from its original rough/natural state. This beautiful piece is 4.9" tall and has stunning hues of blue, white and tan agate. The base has been cut flat so it will display on any flat surface without the use of a stand.
Agate is a variety of microcrystalline quartz (chalcedony) that displays translucence and in some cases banding. Agate primarily forms when silica-rich fluids fill pockets within rock and/or fossils, resulting in deposition of the silica along the walls of the rock. This process can result in banding patterns as the composition and impurities of the fluids change over time. These banding patterns can either form as flat layers or rounded layers, depending on the surfaces available for deposition.