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This Specimen has been sold.
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3.9" Polished Yellowstone River Agate Section - Montana
This is a beautiful 3.9" wide, polished Yellowstone River Agate nodule half that was collected along the Yellowstone River in Montana. It features faint banding and dendritic formations throughout the jasper.
It comes with an acrylic display stand.
It comes with an acrylic display stand.
About Agate
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.
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.
SPECIES
Chalcedony var. Agate
LOCATION
Yellowstone River, Montana
SIZE
3.9 x 3.3"
CATEGORY
ITEM
#150549
