Chalcopyrite, Sphalerite, Pyrite, Quartz Specimen (7” x 4”) tourmaline Trilobites were incredibly diverse creatures

Trilobites were incredibly diverse creatures with a wide range of shapes and sizes

Pyrite's metallic luster often appears like a hematite luster and the pale brass-yellow hue gives it a resemblance to gold

High quality display specimen features a five mineral combo with each mineral species represented in nice sharp crystals with pleasing color combo

pure blue color

Chalcopyrite, Sphalerite, Pyrite, Quartz Specimen (7” x 4”) tourmaline Trilobites were incredibly diverse creaturesThis 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