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Wallkilldellite-(Fe) - Roua Mines, Daluis, Guillaumes, Alpes-Maritimes, Provence-Alpes-Côte d'Azur, France (Type Locality) (#:MINS8249)

Orangey Wallkilldellite-(Fe) in sub-mm xls on matrix from the type locality.Ex Christofe Dubois coll.

Formula :
(Ca,Cu)4Fe2+6(AsO4,SiO4)4(OH,O)8 · 18H2O

System: hexagonal Hardness:3 Rarity:extremely rare
Strunz id:VII/D.52-10 - PHOSPHATES, ARSENATES and VANADATES
Name origin: Named in 1983 by Pete J. Dunn and Donald Ralph Peacor for its discovery locality, the Sterling Mine in the Wallkill Dell (Wallkill Valley), Ogdensburg, New Jersey, USA. No suffix for the manganese dominance was added by the IMA. Any entries that use "-(Mn)" are in error.

Specimen weight:3 gr.
Crystal size:sub-mm
Overall size: 14mm x 9 mm x 9 mm

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Wallkilldellite-(Fe) - Roua Mines, Daluis, Guillaumes, Alpes-Maritimes, Provence-Alpes-Côte d'Azur, France (Type Locality)

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