This exceptional Casteel Mine chalcopyrite specimen features richly iridescent chalcopyrite crystallization layered across a sparkling drusy quartz matrix. Naturally tarnished chalcopyrite displays vivid copper-gold, magenta, violet, and bronze tones—hallmarks of this classic Missouri locality.
A fine, sugar-like drusy quartz coating enhances the metallic luster beneath, creating depth, contrast, and shimmer from every viewing angle. The sculptural, mound-like growth gives this piece strong visual presence, making it an excellent choice for collectors who value both aesthetics and mineralogical integrity.
This specimen attracted interest from multiple international collectors during selection; however, due to shipping limitations, it is offered exclusively within the United States. High-quality chalcopyrite specimens from the Casteel Mine are increasingly difficult to source, particularly with intact druse and strong natural coloration.
A striking and uncommon example of Missouri chalcopyrite—selected for its quality, structure, and collector significance.
Please see Additional Info below for video. Specimen will be securely packed, shipped USPS Priority Mail and insured.
Measures approximately 11.5cm x 8.5cm x 8.9cm
Weight: 1.027 kg
FREE shipping/insurance to residents of U.S. — WE DO NOT OFFER INTERNATIONAL SHIPPING
This exceptional Casteel Mine chalcopyrite specimen features richly iridescent chalcopyrite crystallization layered across a sparkling drusy quartz matrix. Naturally tarnished chalcopyrite displays vivid copper-gold, magenta, violet, and bronze tones—hallmarks of this classic Missouri locality.
A fine, sugar-like drusy quartz coating enhances the metallic luster beneath, creating depth, contrast, and shimmer from every viewing angle. The sculptural, mound-like growth gives this piece strong visual presence, making it an excellent choice for collectors who value both aesthetics and mineralogical integrity.
This specimen attracted interest from multiple international collectors during selection; however, due to shipping limitations, it is offered exclusively within the United States. High-quality chalcopyrite specimens from the Casteel Mine are increasingly difficult to source, particularly with intact druse and strong natural coloration.
A striking and uncommon example of Missouri chalcopyrite—selected for its quality, structure, and collector significance.
Please see Additional Info below for video. Specimen will be securely packed, shipped USPS Priority Mail and insured.
Measures approximately 11.5cm x 8.5cm x 8.9cm
Weight: 1.027 kg
FREE shipping/insurance to residents of U.S. — WE DO NOT OFFER INTERNATIONAL SHIPPING
Image 1 of 13
Image 2 of 13
Image 3 of 13
Image 4 of 13
Image 5 of 13
Image 6 of 13
Image 7 of 13
Image 8 of 13
Image 9 of 13
Image 10 of 13
Image 11 of 13
Image 13 of 13