Gary Green Jasper (Larsonite) Slab | Oregon

Unpolished slab approx. dimensions: 6.25" x 5.75" x 0.5"   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