RARE Fire Glass Buttes Obsidian Rough Chunk Lapidary Stone Magnetite Calico Splatted Oak Opal Wood Measurements (inches - longest -

Measurements (inches - longest - approx): 6 x 3

and it was most likely dug before the 60s

This is a discounted box of old stock Obsidians

As said before

RARE Fire Glass Buttes Obsidian Rough Chunk Lapidary Stone Magnetite Calico Splatted Oak Opal Wood Measurements (inches - longest -Fire Obsidian is a bright fiery flash, which can sometimes contain other bright colors. It tends to run along a strand, and takes a lot of practice, patience, and skill to cut slabs and cabs of it. It is one that is recommended for lapidary veterans. Fire Obsidian gets the color and flash from magnetite, which are tiny microscopic metal flecks, that are embedded within the volcanic glass. Fire Obsidian is easily one of the most rare forms of obsidian