Iridescent Pyrite on Stilbite from Kazakhstan TF2272 hyalite opal the associated calcite often fluoresces

the associated calcite often fluoresces bright yellow-white

It was collected in 2007 and has hand-written notes on a piece of medical tape from the original collector

The many sharp

The Cavnic mine is a large mine located in the northwest of Romania in Maramure

Composed of calcium aluminum silicate

Iridescent Pyrite on Stilbite from Kazakhstan TF2272 hyalite opal the associated calcite often fluorescesIridescent Pyrite on Stilbite from Kazakhstan Approx. Dimensions: 3. 25x1. 5x1 inches Approx. Weight: 58. 6 grams Locality: Sokolovskoe Iron Mine, Kostanay Province, Kazakhstan This is a unique specimen we acquired out of a very small parcel of specimens from a gentleman that collected them in Kazakhstan. It features very brightly colored iridescent pyrite coating white stilbite.