Pyrite Cube in Matrix Bruneau Jasper A polished specimen featuring white

A polished specimen featuring white and gray banding with a crystal center

and blue coloring with a tan bark edge

fire sprinklers

Opalite vein formation

When cut perpendicular to the palm trunk

Pyrite Cube in Matrix Bruneau Jasper A polished specimen featuring whitePyrite cubes in marl matrix from Navajn, Spain. These are natural pyrite minerals and are famous all around the world for their incredible formation. Originally discovered in 1965, the mine has been continually worked to this day. The chemical formula for pyrite is FeS2. The cube itself measures between 1. 5 cm and 2. 5 cm, and the whole cube in matrix is approximately 5 6 oz. The photo is representative of the material and does not necessarily mean