8 1600422hhdwln.nr ((FAYALITE in CRISTOBALITE)), $10 MINIMUM BID, Coso District, Inyo County, California, 2.8 x 2.5 x 1.8 cm, Miniature | |
Here is a rounded egg of light gray Cristobalite which occured in Obsidian. The rounded Cristobalite is opened to show small dark green crystals of Fayalite. ex Vochten collection |