Description
Exceptional Mohawkite Mineral from Michigan, USA
This striking Mohawkite mineral specimen originates from Michigan, USA, a globally renowned locality famous for its rich copper deposits. Mohawkite is a rare and fascinating copper mineral containing significant amounts of silver and nickel. It was first discovered in the Mohawk Mine, located in Keweenaw County, Michigan — the mineral’s namesake and the only known major source of authentic Mohawkite specimens. Each piece is unique, naturally metallic, and polished by geological processes over millions of years, showcasing a distinctive blend of silvery-white, golden, and coppery metallic tones. The specimen offered here is the exact one shown in the photographs, with a 1cm scale cube for reference.
Geological Formation and Locality
Mohawkite forms in hydrothermal copper veins within basaltic host rocks in the Keweenaw Peninsula of Michigan. The mineral typically occurs in association with native copper, silver, domeykite, and algodonite. The unique geological setting of this region was shaped by Precambrian volcanic activity and subsequent hydrothermal alteration, which created one of the most prolific native copper deposits in the world. The Mohawk Mine, operational from the early 1900s, became famous for producing limited quantities of Mohawkite – a collector’s treasure due to its scarcity and striking metallic lustre.
Scientific Composition and Physical Properties
Chemically, Mohawkite is a complex copper mineral with traces of nickel, cobalt, and silver. Its hardness is approximately 3–3.5 on the Mohs scale, placing it between calcite and fluorite in durability. The mineral’s metallic sheen and intergrown textures reveal its composite structure, often featuring patches of native copper and other metallic minerals within the same matrix. Under reflected light, Mohawkite displays an impressive array of bronze, pinkish-gold, and silver tones depending on orientation and lighting, making each specimen visually captivating and scientifically remarkable.
Collector Value and Rarity
Due to the closure of the original Mohawk Mine, genuine Mohawkite specimens have become highly sought after by collectors and mineral enthusiasts worldwide. Their rarity, combined with their historical mining heritage and unusual chemical makeup, ensures lasting value. Many museum and private collections hold only small polished fragments of Mohawkite, making this specimen a prized addition to any serious mineral or geological collection. Its metallic beauty also makes it a striking display piece for both aesthetic and educational purposes.
Authenticity and Presentation
All of our minerals and fossils are 100% Genuine Specimens and come complete with a Certificate of Authenticity. The specimen you see photographed is the exact one you will receive — carefully chosen for its form, quality, and display potential. Full sizing is provided in the photographs, with a 1cm scale cube included for accurate reference. This Mohawkite mineral from Michigan offers not only a tangible connection to the geological history of the Great Lakes region but also a rare opportunity to own a true piece of Earth’s natural metallic art.





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