2.2" Polished Agate Nodule Pair - Mexico

This is a beautiful nodule of banded agate collected from Chihuahua, Mexico. The nodule was carefully removed from the host rock and has been cut in half and polished to a glossy finish. The specimen bears beautiful banding and a gorgeous quartz crystal encrusted pocket at its center. The largest half measures 2.2" wide and both halves of the nodule are included.

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.
FOR SALE
$15
DETAILS
SPECIES
Chalcedony var. Agate & Quartz
LOCATION
Rancho la Laguna, Chihuahua, Mexico
SIZE
Largest nodule half measurement: 2.2 x 1.3 x 1.1"
CATEGORY
ITEM
#330455