5947 x 7355 px | 50,4 x 62,3 cm | 19,8 x 24,5 inches | 300dpi
Aufnahmedatum:
20. März 2025
Weitere Informationen:
Romanechite, Gogebic Iron Range, Michigan Romanechite is a black to steel-gray manganese oxide mineral known for its botryoidal (grape-like) or fibrous appearance and metallic luster. In the Gogebic Iron Range of Michigan, romanechite occurs in manganese-rich zones, often associated with iron ores and other manganese oxides such as pyrolusite and hollandite. It forms through low-temperature hydrothermal or supergene processes and is considered an important component in manganese ore deposits. Specimens from this locality are valued for their distinctive textures and rich metallic sheen.
