Ankerite (Likely Ferroan Dolomite**) Locality: Butte Mining District, Silver Bow County, Montana, USA **Note on mineral species: Initially labeled "Ankerite", many specimens historically labeled as "ankerite" are now classified as ferroan dolomite following revisions to mineral nomenclature. Without analytical testing, it is often difficult to distinguish between the two, and many reported occurrences of ankerite likely represent iron-rich dolomite rather than true ankerite. Dimensions: 4.1 x 2.5 x 2.9 cm Ex Ray Berry Collection (1928-2017)
Ex. Ray Berry Collection. Ray Berry was a respected Colorado mineral collector and mining claim owner whose passion for minerals spanned more than 40 years. He owned and operated several mining claims during his collecting career and was an active member of the Colorado Springs Mineralogical Society, where he served as both Show Committee Chairman and President. Ray was also a dedicated member of Friends of Mineralogy. His collection reflects a lifetime devoted to mineral collecting, mining, and the advancement of the hobby. Ray passed away in 2017.
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