Stewartite photo

Specimen data

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STEWARTITE    Mn2+Fe3+2(PO4)2OH2 · 8H2O
Locality:   Valencia Mine, N. Groton, NH
Specimen Size:   Stewartite crystals 0.1 to 0.2 mm
Environment:    Phosphate pegmatite
Field collected:   Tom Mortimer
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