Sphalerite with Pyrite - Specimen rare mineral from congo For tumbler grit

For tumbler grit

With its dark earthy colour

Description: Blue amber from Indonesia is one of the rarest and most visually captivating types of fossilized resin in the world

and personal expression

and the idea that something ancient can still hold fire and color millions of years later

Sphalerite with Pyrite - Specimen rare mineral from congo For tumbler gritMined from: Huanzala Mine, Huallanca District, Ancash, Peru Description: This one of a kind Sphalerite with Pyrite mineral specimen from Peru features a dark, lustrous sphalerite rich matrix accented by bright brassy pyrite crystals scattered across the surface. The sphalerite displays deep charcoal gray to black tones with a glossy metallic to resinous shine, forming clustered, angular crystal faces throughout the piece. The pyrite adds sharp golden