7" Polished, Banded Agate Slab - Brazil

This is a richly colored piece of banded agate that has been cut flat on both sides and polished on one. This specimen was collected from Brazil and features a variety of colors of agate including orange and red agate. It comes with an acrylic display 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 rocks and/or fossils, depositing the silica along the walls of the rock. This process can result in banding patterns, as the compositions and impurities of these depositing fluids change over time. These banding patterns can either form as flat layers, creating linear patterns known as waterline agate, or as rounded layers, forming more common ring-like patterns. These patterns depend on the surfaces available for deposition.
SOLD
DETAILS
SPECIES
Chalcedony var. Agate
LOCATION
Brazil
SIZE
7 x 5", .2" thick
CATEGORY
SUB CATEGORY
ITEM
#167496