Pyrite Matrix with Quartz & Tetrahedrite Sphalerite, Item# P-020 china the angular ridges are twinning

the angular ridges are twinning gypsum crystals

2" Diameter  (approx

Optical Calcite naturally forms into this unique parallelogram shape

Unpolished with beautiful rainbows

Pyrite Matrix with Quartz & Tetrahedrite Sphalerite, Item# P-020 china the angular ridges are twinningPyrite Matrix with Quartz & Tetrahedrite Sphalerite Size: 3. 9" L x 1. 8" W x 1. 6" H (approx.) Origin: Spain Weight: 9 ounces This is an awesome specimen. The main face is covered with quartz crystal druzies and Tetrahedrite Sphalerite. Beautiful iridescent colors appear when viewed through a loupe on the Sphalerite tetrahedrons. Great collector's specimen at an excellent price!