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Wallkilldellite

About

The Mn analogue of Wallkilldellite-(Fe).

Discovered: 1982

Type Locality
Sterling Mine, Sterling Hill, Ogdensburg, Franklin, Sussex County, New Jersey, USA
Mineral Data
Ca2Mn32+(AsO4)2(OH)4 · 9H2O
Strunz: 
8.DL.20
Physical Properties
Colour: 
Dark red to nearly black
Crystal System: 
Hexagonal
Streak: 
Pale orange
Hardness: 
3 -
Synonyms
Synonyms: 
IMA1982-084, Wallkilldellite-(Mn)
Photos