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Eumanite

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Name:
Named by Charles Upham Shepard in 1851 from the Greek eu and manos for "good" and "rare". Dana (1851) suggested that eumanite was brookite, but the crystallographic and physical descriptions suggest that the mineral was actually columbite-(Mn) or tantalite-(Mn), which would have been new species if properly characterized.
Minute crystals occurring with rubellite and microlite in pegmatite, Chesterfield, MA.


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Unique IdentifiersHide

Mindat ID:
29922 (as Eumanite)
40235 (as Columbite-(Mn)-Tantalite-(Mn) Series)
Long-form identifier:
mindat:1:1:29922:0 (as Eumanite)
mindat:1:1:40235:6 (as Columbite-(Mn)-Tantalite-(Mn) Series)

Similar NamesHide

EkmaniteA variety of StilpnomelaneK4(Fe2+,Mn)48[Si64Al8]O1664(OH)52 · nH2O
EmmoniteA variety of Strontianite(Sr,Ca)CO3
RumaniteA synonym

Internet Links for EumaniteHide

References for EumaniteHide

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