SOLD
MD-40050
Cristobalite, Fayalite
Thumbnail, 6.0 x 5.4 x 2.5 cm
Canyon Butte occurrence (Couger Butte), Canyon Butte, Siskiyou Co., California, USA
SOLD
This example of cristobalite on obsidian, created by devitrification of the obsidian, exhibits a large vesicle 2.5 cm across. 6 x 5.4 x 2.5 cm