Montana agate is a variety of chalcedony that is found exclusively in the state of Montana, USA. It is known for its distinctive banding patterns, which are created by the deposition of various minerals within the stone. Montana agate is often used in jewelry making and lapidary work, and it is highly prized by collectors for its unique beauty and rarity. The stone can range in color from clear to white to gray, and it may contain shades of yellow, orange, red, and brown.
