SiO2 (trigonal) Photo by Steve Sorrell Steve Sorrell Collection (self collected) Smoky Quartz with fluorite and siderite, Mount Bischoff Tin Mine, Waratah, Tasmania. The specimen is about 60mm.
Smoky Quartz with fluorite and siderite, Mount Bischoff Tin Mine, Waratah, Tasmania. The specimen is about 60mm.