Chalcopyrite (twin) (ex Rich Kosnar collection)

Item Description

The Bandora Mine was intermittently active from 1884 to about 1950. This specimen is from finds in the early 1980s This mine has produced some of the finest Chalcopyrite specimens ever found in Colorado and this is a great small cabinet / large miniature of said material. The striking, sharp, interpenetrating Chalcopyrite twins at the top of the specimen are beautifully iridescent on the bright, golden-brassy, lightly striated crystals and are sitting atop a matrix of intermixed Quartz and Sphalerite. There is one small contact to the 2.3 cm Chalcopyrite twinned group, but the aesthetics of the piece and scarcity of the material make it a desirable display specimen from this historic mine, which is best known for Chalcopyrite. From the Rich Kosnar Colorado collection, valued at $700.