9.6" Polished Mushroom Jasper Section - Arizona
This is a beautiful, polished section of Mushroom Jasper that was collected near Phoenix, Arizona. The polished face measures 9.6 x 4.3", and the specimen is just over 4.3" thick.
Mushroom Jasper, also known as "Mushroom Rhyolite", is the name for an orbicular rhyolite that is found in several areas northwest of Phoenix, Arizona. Often, formations of quartz and agate can be found throughout these specimens. In some instances the quartz pocket will contain purple amethyst crystals (quartz var. amethyst). This rhyolite earns its name after the earthy brown to green colored orbicular formations that in many cases have the appearance of a mushroom cap.