Gary Green Jasper (Larsonite) | Oregon

Semi-polished specimen approx. dimensions: 43mm x 23mm x 10mm

Gary Green Jasper (also known as Larsonite or Petrified Bogwood) is a vibrant variety of petrified wood found in eastern Oregon, near McDermitt on the Oregon–Nevada border. It’s a fossilized form of wood that has been replaced with minerals like silica over millions of years, typically in a marshy or bog-like environment — hence the nickname "petrified bogwood."

Key Features:

• Coloration: Gary Green Jasper is especially prized for its stunning, earthy hues — often vibrant greens, browns, tans, blues, and even hints of yellow. These colors are caused by various mineral inclusions such as iron, copper, and manganese.
• Patterning: It often exhibits flowy, layered, or woodgrain patterns, making it a favorite for lapidary artists and collectors.
• Hardness: With a Mohs hardness of about 6.5–7, it is durable and takes a high polish, making it ideal for jewelry, cabochons, and decorative pieces.

Origin:

The name “Gary Green” comes from Gary McKinney, one of the original miners associated with the material, and the “green” from its most common color. It's found in limited quantities, which adds to its desirability among collectors.