Rhodochrosite with Pyrite
Unknown Owner
Help improve this recordNo owner is registered for this specimen yet. If it's yours or you know more about it, you can add the owner, provenance, publications and other details.
Good American classic with rhombohedral lustrous slightly translucent crystals of rhodochrosite to 2.0 cm on edge across the front of matrix with micro pyrite crystals. Very slight micro-damage present, overall this still very good.
The Emma Mine in Butte, Montana was part of the extensive Butte mining district, one of the most productive copper mining regions in the United States. Developed in the late 19th century, the mine exploited rich polymetallic hydrothermal veins hosted in granitic and volcanic rocks that contained copper minerals along with silver, gold, and other metals. Operations were carried out by underground methods and were connected to the larger network of shafts and tunnels that characterized mining in Butte. Although individual mines such as the Emma eventually closed as operations consolidated, they contributed significantly to the districts reputation as the Richest Hill on Earth.
Product details
SpeciesPyrite, Rhodochrosite
SizeSmall Cabinet
Dimensions7.0 x 5.0 x 4.0 cm
Added on03/10/2026
LocalityUSA, New Mexico, Emma Mine
Known provenance
| Date | Collector | Acquisition price |
|---|---|---|
| 03/2026 | Unknown Owner | $500.00 |
| — | Weinrich Minerals | Not disclosed |
Learn more
Mineral guide
Learn about Pyrite
brilliant metallic luster, perfect cubes, and golden color; collectors prize affordable pieces to top specimens, with Navajún and Huanzala localities.Regional guide
Comments