Chalcopyrite, Sphalerite, Pyrite, Quartz Specimen (7” x 4”) Enhydrite with many thousands of known

with many thousands of known species

a soft mineral made up of calcium sulfate

usually with a long siphonal canal and a short

Ammonites are said to be a protective stone

Naturally formed

Chalcopyrite, Sphalerite, Pyrite, Quartz Specimen (7” x 4”) Enhydrite with many thousands of knownThis spectacular specimen comes to us from the Madan Ore Field Rhodope Mountains, Smolyan Oblast Bulgaria. This specimen is a rare combination of Chalcopyrite, Sphalerite, Pyrite, Quartz that displays black and white crystal clusters. Chalcopyrite is a copper iron sulfide mineral that crystallizes in the tetragonal system. Chalcopyrite is known to have a brassy to golden yellow color and a hardness of 3. 5 to 4 on the Mohs scale. Chalcopyrite is