3.4" Polished Banded Agate Slice - Chihuahua, Mexico

This is a beautiful, 3.4" wide, polished slice of a banded agate nodule, collected from the "Purple Passion" location in Chihuahua, Mexico. It features bands of purple, grey and blue encircling lavender and white agate masses. It has been cut flat and polished to a glossy finish on one side.

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.

Chalcedony var. Agate
Chihuahua, Mexico
3.4 x 2.2", .2" thick