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|System:||Hexagonal||Colour:||Dark red to nearly black|
|Name:||Named in 1983 by Pete J. Dunn and Donald Ralph Peacor for its discovery locality, the Sterling Mine in the Wallkill Dell (River Valley), Ogdensburg, New Jersey, USA. The suffix for the manganese dominance was added by the IMA.|
The Mn analogue of Wallkilldellite-(Fe).
Classification of Wallkilldellite-(Mn)
|IMA status:||Approved 1982|
|Strunz 8th edition ID:||7/D.52-10|
|Nickel-Strunz 10th (pending) edition ID:||8.DL.20|
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
L : With large and medium-sized cations, (OH, etc.):RO4 = 2:1
|Hey's CIM Ref.:||20.8.16|
20 : Arsenates (also arsenates with phosphate, but without other anions)
8 : Arsenates of Mn
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Type Occurrence of Wallkilldellite-(Mn)
|Type Locality:||Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA|
|Year of Discovery:||1982|
Physical Properties of Wallkilldellite-(Mn)
|Colour:||Dark red to nearly black|
Crystallography of Wallkilldellite-(Mn)
|Cell Parameters:||a = 6.5Å, c = 23.49Å|
|Ratio:||a:c = 1 : 3.614|
|Unit Cell Volume:||V 859.49 Å³ (Calculated from Unit Cell)|
Optical Data of Wallkilldellite-(Mn)
Chemical Properties of Wallkilldellite-(Mn)
|Essential elements:||As, Ca, H, Mn, O|
|All elements listed in formula:||As, Ca, H, Mn, O|
Relationship of Wallkilldellite-(Mn) to other Species
|Structurally related to group(s):|
|Related Minerals - Nickel-Strunz Grouping):|
|Related Minerals - Hey's Index Grouping:|
Other Names for Wallkilldellite-(Mn)
|Health Warning:||No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.|
References for Wallkilldellite-(Mn)
American Mineralogist (1983): 68: 1029-1032.
Internet Links for Wallkilldellite-(Mn)
Localities for Wallkilldellite-(Mn)
The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.