7.15" Polished Agate Slice - Idaho

This is a 7.15" wide, polished agate slice from Idaho. It features beautiful brecciated jasper and translucent agate in a greenish matrix, and has been polished to a glossy finish on one face.

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
Wyoming
SIZE
7.15 x 4.2", 0.3" thick
CATEGORY
ITEM
#250947