16hhdmo ((SNOWFLAKE OBSIDIAN, CRISTOBALITE, PERTHITE)), $10 MINIMUM BID, Black Rock, Millard County, Utah, 7 x 7 x 4.5 cm, Cabinet, | |
Here is an unusual specimen. It has fractured but rounded instead of sharp razor sharp edges on the black Obsidian. Instead of sphericules of white Cristobalite typical of Snowflake Obsidian, the white and gray appears to be in layers. ex Dennis McMurdie collection. |