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Formula: (Ca,Sr,Na)3(Mn2+,Fe3+)2Mn4+2(VO4)4(OH,O)5.2H2O
Hydrated vanadate, strontium-
and manganese- bearing mineral
Crystal System: Orthorhombic
Specific gravity: 3.379 measured, 3.39 calculated
Streak: Brown
Colour: Black
Environments
Sedimentary environments
Hydrothermal environments
Localities
At Monument No. 1 Mine, Monument No. 1 channel, Mystery Valley, Mineral Mining District, Navajo County, Arizona,
USA, santafeite is found rarely, incrusting fractures in
sandstone in the Colorado Plateau-type U–V deposit. Associated
minerals include carnotite
(HOM).
At the type locality, an Unnamed U mine, McKinley County, New Mexico, USA, santafeite occurs as an
incrustation in small rosettes of acicular crystals in limestone in
the Colorado Plateau-type U–V deposit. Associated minerals include calcite
and cuprosklodowskite
(HOM, Mindat).
Santafeite from McKinley County -
Image
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