RARE Fire Glass Buttes Obsidian Rough Chunk Blue It is a very hard

It is a very hard stone to mine

Each polished display specimen shows great flash on at least one side

moss agate

Velvet Obsidian has a nice velvety display of flashes of color

they are totally awesome

RARE Fire Glass Buttes Obsidian Rough Chunk Blue It is a very hardFire 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 practise, 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