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Species confirmed by Ray Lasmanis. He personally collected the specimen as an ore sample and had it analyzed while working as a newly minted mining geologist in Butte upon graduation in 1960. His label shows species and date collected from the Western dumps of the Travona Mine. (Personal visit and communication in October 2018).

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Original EntrySpecies confirmed by Ray Lasmanis. He personally collected the specimen as an ore sample and had it analyzed while working as a newly minted mining geologist in Butte upon graduation in 1960. His label shows species and date collected from the Western dumps of the Travona Mine. (Personal visit and communication in October 2018).
Mindat Ref. ID16087083Long-form Identifiermindat:1:5:16087083:7
GUID0
Full ReferenceSpecies confirmed by Ray Lasmanis. He personally collected the specimen as an ore sample and had it analyzed while working as a newly minted mining geologist in Butte upon graduation in 1960. His label shows species and date collected from the Western dumps of the Travona Mine. (Personal visit and communication in October 2018).
Plain TextSpecies confirmed by Ray Lasmanis. He personally collected the specimen as an ore sample and had it analyzed while working as a newly minted mining geologist in Butte upon graduation in 1960. His label shows species and date collected from the Western dumps of the Travona Mine. (Personal visit and communication in October 2018).

Map of Localities

Mineral Occurrences

LocalityMineral(s)
Travona Mine, Butte Mining District (Summit Valley Mining District), Silver Bow County, Montana, USA Psilomelane


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