bixbyites
Bixbyites are a specific type of mineral belonging to the garnet group. They are characterized by their chemical formula, typically represented as (Mn,Fe)3(O,OH)4. The name "bixbyite" honors the American mineralogist Floyd M. Bixby. These minerals are found in various geological settings, often associated with manganese-rich deposits. They typically form dark brown to black crystals, often with a cubic or dodecahedral habit. Bixbyite is known for its relatively high specific gravity and vitreous to submetallic luster. The manganese and iron content can vary, leading to slight differences in their properties. While bixbyite is not as common as some other garnet species, it is of interest to mineral collectors and geologists studying manganese ore formation. Its occurrence is often in association with other manganese oxides and silicates. Research into bixbyite continues to refine our understanding of its crystallographic structure and its role in geological processes.