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Wallkilldellite-(Mn)

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Big Photo

Falotta, Tinizong (Tinzen), Oberhalbstein (Surses; Sursass), Albula Valley, Grischun (Grisons; Graubünden), Switzerland
© G.Fraccaro

Show Wallkilldellite-(Mn) Photos (2)



Formula:
Ca
 
2
Mn
2+
3
(AsO
 
4
)
 
2
(OH)
 
4
 · 9H
 
2
O
System:HexagonalColour:Dark red to nearly black
Hardness:3
Name:Named after its discovery locality, the Sterling Mine in the Wallkill River Valley (dell), Ogdensburg, New Jersey, USA


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:1983

Physical Properties of Wallkilldellite-(Mn)

Lustre:Resinous
Diaphaneity (Transparency):Translucent
Colour:Dark red to nearly black
Streak:Pale orange
Hardness (Mohs):3

Crystallography of Wallkilldellite-(Mn)

Crystal System:Hexagonal
Cell Parameters:a = 6.5Å, c = 23.49Å
Ratio:a:c = 1 : 3.614
Unit Cell Volume:V 859.49 ų (Calculated from Unit Cell)

Optical Data of Wallkilldellite-(Mn)

Type:Uniaxial (-)

Chemical Properties of Wallkilldellite-(Mn)

Formula:
Ca
 
2
Mn
2+
3
(AsO
 
4
)
 
2
(OH)
 
4
 · 9H
 
2
O
Essential elements:As, Ca, H, Mn, O
All elements listed in formula:As, Ca, H, Mn, O

Relationship of Wallkilldellite-(Mn) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.DL.05Foggite
CaAl(PO
 
4
)(OH)
 
2
 · H
 
2
O
8.DL.10Cyrilovite
NaFe
3+
3
(PO
 
4
)
 
2
(OH)
 
2
 · 2H
 
2
O
8.DL.10Millisite
(Na,K)CaAl
 
6
(PO
 
4
)
 
4
(OH)
 
9
 · 3H
 
2
O
8.DL.10Wardite
NaAl
 
3
(PO
 
4
)
 
2
(OH)
 
4
 · 2H
 
2
O
8.DL.15Agardite-(Nd)
NdCu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
8.DL.15Agardite-(Y)
(Y,Ca)Cu
 
6
(AsO
 
4
)
 
2
(AsO
 
4
,HAsO
 
4
)(OH)
 
6
 · 3H
 
2
O
8.DL.15Agardite-(Ce)
CeCu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
8.DL.15Agardite-(La)
(La,Ce)Cu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
8.DL.15Goudeyite
(Al,Y)Cu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
8.DL.15Mixite
BiCu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
8.DL.15Petersite-(Y)
(Y,Ce,Nd)Cu
 
6
(PO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
8.DL.15Zálesíite
(Ca,Y)Cu
 
6
(AsO
 
4
)
 
2
(HAsO
 
4
,AsO
 
4
)(OH)
 
6
 · 3H
 
2
O
8.DL.15Plumboagardite
(Pb,REE,Ca)Cu
 
6
(AsO
 
4
)
 
2
(HAsO
 
4
,AsO
 
4
)(OH)
 
6
 · 3H
 
2
O
8.DL.15Calciopetersite
CaCu
 
6
(PO
 
4
)
 
2
(HPO
 
4
)(OH)
 
6
 · 3H
 
2
O
8.DL.20Cheremnykhite
Pb
 
3
Zn
 
3
(VO
 
4
)
 
2
(TeO
 
6
)
8.DL.20Dugganite
Pb
 
3
Zn
 
3
(AsO
 
4
)
 
2
(TeO
 
6
)
8.DL.20Kuksite
Pb
 
3
Zn
 
3
(PO
 
4
)
 
2
(TeO
 
6
)
8.DL.20Wallkilldellite-(Fe)
(Ca,Cu)
 
4
Fe
2+
6
(AsO
 
4
,SiO
 
4
)
 
4
(OH,O)
 
8
 · 18H
 
2
O
8.DL.25Angastonite
CaMgAl
 
2
(PO
 
4
)
 
2
(OH)
 
4
 · 7H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
20.8.1Sarkinite
Mn
2+
2
(AsO
 
4
)(OH)
20.8.2Eveite
Mn
2+
2
(AsO
 
4
)(OH)
20.8.3Arsenoclasite
Mn
2+
5
(AsO
 
4
)
 
2
(OH)
 
4
20.8.4Flinkite
Mn
2+
2
Mn
3+
 
(AsO
 
4
)(OH)
 
4
20.8.5Jarosewichite
Mn
2+
3
Mn
3+
 
(AsO
 
4
)(OH)
 
6
20.8.6Allactite
Mn
2+
7
(AsO
 
4
)
 
2
(OH)
 
8
20.8.7Krautite
Mn(HAsO
 
4
) · H
 
2
O
20.8.8Synadelphite
Mn
2+
9
(As
5+
 
O
 
4
)
 
2
(As
3+
 
O
 
3
)(OH)
 
9
 · 2H
 
2
O
20.8.9Sterlinghillite
Mn
 
3
(AsO
 
4
)
 
2
 · 4H
 
2
O
20.8.10Geigerite
Mn
2+
5
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 10H
 
2
O
20.8.11Akrochordite
(Mn
2+
 
,Mg)
 
5
(AsO
 
4
)
 
2
(OH)
 
4
 · 4H
 
2
O
20.8.12Manganohörnesite
(Mn,Mg)
 
3
(AsO
 
4
)
 
2
 · 8H
 
2
O
20.8.13Fluckite
CaMn
2+
 
(HAsO
 
4
)
 
2
 · 2H
 
2
O
20.8.14Brandtite
Ca
 
2
(Mn
2+
 
,Mg)(AsO
 
4
)
 
2
 · 2H
 
2
O
20.8.15Parabrandtite
Ca
 
2
Mn
2+
 
(AsO
 
4
)
 
2
 · 2H
 
2
O
20.8.17Berzeliite
NaCa
 
2
(Mg,Mn
2+
 
)
 
2
(AsO
 
4
)
 
3
20.8.18Manganberzeliite
(Ca,Na)
 
3
(Mn
2+
 
,Mg)
 
2
(AsO
 
4
)
 
3
20.8.19Magnesiochlorophoenicite
(Mg,Mn)
 
3
Zn
 
2
(AsO
 
4
)(OH,O)
 
6
20.8.20Villyaellenite
MnMn
 
2
Ca
 
2
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 4H
 
2
O
20.8.21Hematolite
(Mn,Mg,Al)
 
15
(As
5+
 
O
 
4
)
 
2
(As
3+
 
O
 
3
)(OH)
 
23
20.8.22Grischunite
NaCa
 
2
Mn
2+
5
Fe
3+
 
(AsO
 
4
)
 
6
 · 2H
 
2
O

Other Names for Wallkilldellite-(Mn)

Synonyms:
IMA1982-084
Other Languages:
German:Wallkilldellit
Spanish:Wallkilldellita

Other Information

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)

Reference List:

- +
American Mineralogist (1983): 68: 1029-1032.

Internet Links for Wallkilldellite-(Mn)

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Wallkilldellite details from Handbook of Mineralogy (PDF)
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    • 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.
    Hide Locality List
    (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.
    France
     
    • Provence-Alpes-Côte d'Azur
      • Alpes-Maritimes
        • Guillaumes
          • Daluis
    • Rhône-Alpes
      • Rhône
        • Beaujeu
          • Les Ardillats
    		Favreau G., Legris J-R., Dardillac M. (1996), La Verrière (Rhône): Histoire et Minéralogie, Le Cahier des Micromonteurs, n°3, pp:3-28
    Greece
     
    • Attikí (Attica; Attika) Prefecture
      • Lavrion (Laurion; Laurium) District
        • Lavrion District Mines
          • Lavrion (Laurion; Laurium)
    		Möckel, S. (2001): Wallkilldellit und weitere acht Neubestimmungen aus Lavrion, Griechenland. Lapis: 26(11): 43 (in German).
    Japan
     
    • Honshu Island
      • Tohoku Region
        • Fukushima Prefecture
          • Iwaki
    		Matsubara, S. et al (2001) Bulletin of the National Science Museum (Tokyo), 27, 45-50.
    Switzerland
     
    • Grischun (Grisons; Graubünden)
      • Albula Valley
        • Oberhalbstein (Surses; Sursass)
          • Tinizong (Tinzen)
      • Hinterrhein Valley
        • Ferrera Valley
          • Ausserferrera
    		Steve Sorrell Collection (from Sauktown Sales)
          • Starlera Valley
    		Lapis 27(11),43(2002)
    USA
     
    • New Jersey
      • Sussex Co.
        • Franklin Mining District
          • Ogdensburg
            • Sterling Hill
    		Dunn, P.J. & Peacor, D.R.: Am.Min.:68:1029-1032 (1983); Dunn(1995):Pt5:684.
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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