Agate - PA2.10

Agate (with Polished Face), Argentina 

4.75" x 3" x 3.5" / 2.10 lbs

Agates are a microcrystalline variety of quartz known as chalcedony. They are distinguished from other varieties of quartz by color bands that are often concentric. This  bulky specimen was hand-picked in Escorial, Chubut, Patagonia, Argentina.