Calcite (Manganese-rich)
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Calcite (manganese-rich), 24 cm, from the Idarado mine, San Miguel County, Colorado. Geoffrey Crowe photo.
Product details
SizeLarge Cabinet
Dimensions24.0 cm
Added on02/13/2026
LocalityUSA, Colorado, Idarado Mine
Publications
- Mineralogical Record Mineral Collections In American Northeast page 285
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Mineral guide
Learn about Manganese
Native manganese a rare native-element specimen prized by advanced collectors for its silvery luster, tiny grains, and provenance; misidentifications lower val…Regional guide
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