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Nickenichite

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Formula:
Na
 
0.8
Ca
 
0.4
Cu
 
0.4
(Mg,Fe)
 
3
(AsO
 
4
)
 
3
System:MonoclinicColour:Bright blue to gray blue.
Hardness:3
Member of:Alluaudite Group
Name:Named by M. Auernhammer, H. Effenberger, G. Hentschel, Th. Reinecke, and E. Tillmanns in 1993 for the type locality at Nickenicher Sattel (Eicher Sattel), Eich, Andernach, Eifel Mts, Rhineland-Palatinate, Germany.
This page provides mineralogical data about Nickenichite.

Classification of Nickenichite

IMA status:Approved
Strunz 8th edition ID:7/A.07-30
Nickel-Strunz 10th (pending) edition ID:8.AC.10

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
C : With medium-sized and large cations
Dana 7th edition ID:38.2.7.3
Dana 8th edition ID:38.2.3.9

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
2 : (AB)5(XO4)3
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Type Occurrence of Nickenichite

Type Locality:Nickenichite-bearing fumarole, Nickenicher Sattel (Eicher Sattel), Eich, Andernach, Eifel, Rhineland-Palatinate, Germany
Year of Discovery:1993
Geological Setting of type material:Scoriaceous basalt
Associated Minerals at type locality:
Vanadinite

Physical Properties of Nickenichite

Lustre:Sub-Vitreous
Diaphaneity (Transparency):Translucent
Colour:Bright blue to gray blue.
Hardness (Mohs):3
Tenacity:Brittle
Cleavage:Perfect
{010} perfect; {100} and {10-1} good.
Density (calculated):4.06 g/cm3

Crystallography of Nickenichite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:B2/b {B1 1 2/b} {C2/c} {C1 2/c 1}
Space Group Setting:C2/c
Cell Parameters:a = 11.882Å, b = 12.76Å, c = 6.647Å
β = 112.81°
Ratio:a:b:c = 0.931 : 1 : 0.521
Unit Cell Volume:V 928.97 ų (Calculated from Unit Cell)
Z:4
Comment:TMPM 48:153 (1993) structure.
X-Ray Powder Diffraction:
d-spacingIntensity
4.35 (40)
4.06 (50)
3.56 (40)
3.53 (40)
3.20 (60)
3.07 (40)
2.74 (100)
2.61 (40)
Comments:TMPM 48:153 (1993)

Optical Data of Nickenichite

Type:Biaxial (+)
RI values: nα = 1.714 nβ = 1.744 nγ = 1.783
2V:Measured: 60° to 84°, Calculated: 86°
Birefringence:0.069
Maximum Birefringence:δ = 0.069

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Dispersion:weak
Pleochroism:Non-pleochroic

Chemical Properties of Nickenichite

Formula:
Na
 
0.8
Ca
 
0.4
Cu
 
0.4
(Mg,Fe)
 
3
(AsO
 
4
)
 
3
Simplified for copy/paste:Na0.8Ca0.4Cu0.4(Mg,Fe)3(AsO4)3
Essential elements:As, Ca, Cu, Mg, Na, O
All elements listed in formula:As, Ca, Cu, Fe, Mg, Na, O
Common Impurities:K,Mn,P

Relationship of Nickenichite to other Species

Member of:Alluaudite Group
Other Members of Group:

- +
Alluaudite
(Na,Ca)Mn
2+
 
(Fe
3+
 
,Mn
2+
 
,Fe
2+
 
,Mg)
 
2
(PO
 
4
)
 
3
Alluaudite-Ca□
 
4
Ca
 
4
Mn
2+
4
Fe
3+
8
(PO
 
4
)
 
12
Alluaudite-Na□
 
4
Na
 
4
Mn
2+
4
Fe
3+
8
(PO
 
4
)
 
12
Arseniopleite
NaCaMn
2+
 
(Mn
2+
 
,Mg)
 
2
(AsO
 
4
)
 
3
Bradaczekite
NaCu
 
4
(AsO
 
4
)
 
3
Caryinite
(Na,Pb)(Ca,Na)(Ca,Mn
2+
 
)(Mn
2+
 
,Mg,Fe
3+
 
)
 
2
(AsO
 
4
)
 
3
Ferroalluaudite
(Na,Ca)Fe
2+
 
(Fe
3+
 
,Mn
2+
 
,Fe
2+
 
)
 
2
(PO
 
4
)
 
3
Ferroalluaudite-NaNa
Na
 
4
Na
 
4
Fe
2+
4
Fe
3+
8
(PO
 
4
)
 
12
Ferrohagendorfite
NaCaFe
2+
 
Fe
2+
2
(PO
 
4
)
 
3
Groatite
NaCaMn
 
2
(PO
 
4
)(HPO
 
4
)
 
2
Hagendorfite
NaCaMn
2+
 
Fe
2+
2
(PO
 
4
)
 
3
Hagendorfite-Varulite Series
NaCaMn
2+
 
(Fe
2+
 
,Fe
3+
 
,Mg)
 
2
(PO
 
4
)
 
3
Hatertite
Na
 
2
(Ca,Na)(Fe
3+
 
,Cu)
 
2
(AsO
 
4
)
 
3
Johillerite
Na(Mg,Zn)
 
3
Cu(AsO
 
4
)
 
3
Maghagendorfite
(□,Na,)(Na,Ca,Fe
2+
 
)Mn(Mg,Fe
2+
 
,Fe
3+
 
)
 
3
(PO
 
4
)
 
3
O'Danielite
Na(Zn,Mg)
 
3
H
 
2
(AsO
 
4
)
 
3
Varulite
NaCaMn
2+
 
Mn
2+
2
(PO
 
4
)
 
3
Yazganite
NaFe
3+
2
(Mg,Mn
2+
 
)(AsO
 
4
)
 
3
· H
 
2
O
Related Minerals - Nickel-Strunz Grouping):

- +
8.AC.05Howardevansite
NaCuFe
 
2
(VO
 
4
)
 
3
8.AC.10Alluaudite
(Na,Ca)Mn
2+
 
(Fe
3+
 
,Mn
2+
 
,Fe
2+
 
,Mg)
 
2
(PO
 
4
)
 
3
8.AC.10Arseniopleite
NaCaMn
2+
 
(Mn
2+
 
,Mg)
 
2
(AsO
 
4
)
 
3
8.AC.10Caryinite
(Na,Pb)(Ca,Na)(Ca,Mn
2+
 
)(Mn
2+
 
,Mg,Fe
3+
 
)
 
2
(AsO
 
4
)
 
3
8.AC.10Ferroalluaudite
(Na,Ca)Fe
2+
 
(Fe
3+
 
,Mn
2+
 
,Fe
2+
 
)
 
2
(PO
 
4
)
 
3
8.AC.10Hagendorfite
NaCaMn
2+
 
Fe
2+
2
(PO
 
4
)
 
3
8.AC.10Johillerite
Na(Mg,Zn)
 
3
Cu(AsO
 
4
)
 
3
8.AC.10Maghagendorfite
(□,Na,)(Na,Ca,Fe
2+
 
)Mn(Mg,Fe
2+
 
,Fe
3+
 
)
 
3
(PO
 
4
)
 
3
8.AC.10Varulite
NaCaMn
2+
 
Mn
2+
2
(PO
 
4
)
 
3
8.AC.10Ferrohagendorfite
NaCaFe
2+
 
Fe
2+
2
(PO
 
4
)
 
3
8.AC.10Bradaczekite
NaCu
 
4
(AsO
 
4
)
 
3
8.AC.10Yazganite
NaFe
3+
2
(Mg,Mn
2+
 
)(AsO
 
4
)
 
3
· H
 
2
O
8.AC.10Groatite
NaCaMn
 
2
(PO
 
4
)(HPO
 
4
)
 
2
8.AC.15Bobfergusonite
Na
 
2
Mn
 
5
FeAl(PO
 
4
)
 
6
8.AC.15Ferrowyllieite
(Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO
 
4
)
 
3
8.AC.15Qingheiite
NaMn
3+
 
Mg(Al,Fe
3+
 
)(PO
 
4
)
 
3
8.AC.15Rosemaryite
(Na,Ca,Mn)(Mn,Fe
2+
 
)(Fe
3+
 
,Mg)Al(PO
 
4
)
 
3
8.AC.15Wyllieite
(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO
 
4
)
 
3
8.AC.15Ferrorosemaryite
◻NaFe
2+
 
Fe
3+
 
Al(PO
 
4
)
 
3
8.AC.15Qingheiite-(Fe2+)
Na
 
2
Fe
2+
 
MgAl(PO
 
4
)
 
3
8.AC.18Manitobaite
Na
 
16
Mn
2+
 
 
25
Al
 
8
(PO
 
4
)
 
30
8.AC.20Marićite
NaFe
2+
 
(PO
 
4
)
8.AC.25Berzeliite
NaCa
 
2
(Mg,Mn
2+
 
)
 
2
(AsO
 
4
)
 
3
8.AC.25Manganberzeliite
(Ca,Na)
 
3
(Mn
2+
 
,Mg)
 
2
(AsO
 
4
)
 
3
8.AC.25Palenzonaite
(Ca,Na)
 
3
CaMn
2+
2
(VO
 
4
)
 
3
8.AC.25Schäferite
Ca
 
2
NaMg
 
2
(VO
 
4
)
 
3
8.AC.30Brianite
Na
 
2
CaMg(PO
 
4
)
 
2
8.AC.35Vitusite-(Ce)
Na
 
3
(Ce,La,Nd)(PO
 
4
)
 
2
8.AC.40Olgite
(Sr,Ba)(Na,Sr,REE)
 
2
Na(PO
 
4
)
 
2
8.AC.40Bario-olgite
(Ba,Sr)(Na,Sr,REE)
 
2
Na(PO
 
4
)
 
2
·
8.AC.45Strontiowhitlockite
Sr
 
9
Mg(PO
 
4
)
 
6
(HPO
 
4
)
8.AC.45Whitlockite
Ca
 
9
Mg(PO
 
4
)
 
6
(HPO
 
4
)
8.AC.45Merrillite
Ca
 
9
NaMg(PO
 
4
)
 
7
8.AC.45Tuite
Ca
 
3
(PO
 
4
)
 
2
8.AC.45Ferromerrillite
Ca
 
9
NaFe
2+
 
(PO
 
4
)
 
7
8.AC.45Bobdownsite
Ca
 
9
Mg(PO
 
4
)
 
6
(PO
 
3
F)
8.AC.50Chladniite
{Ca}{Na
 
8
}{Ca
 
4
Na
 
4
}{(Mg,Fe
2+
 
)
 
43
}(PO
 
4
)
 
36
8.AC.50Fillowite
{Mn
2+
 
}{Na
 
8
}{Ca
 
4
Na
 
4
}{(Mn
2+
 
,Fe
2+
 
)
 
43
}(PO
 
4
)
 
36
8.AC.50Johnsomervilleite
Na
 
10
Ca
 
6
Mg
 
18
Fe
 
25
(PO
 
4
)
 
36
8.AC.50Galileiite
{Fe
2+
 
}{Na
 
8
}{Fe
2+
4
Na
 
4
}{Fe
2+
43
}(PO
 
4
)
 
36
8.AC.50Stornesite-(Y)
{(Y, Ca)}{Na
 
6
 
2
}{(Ca,Na)
 
8
}{(Mg,Fe
2+
 
)
 
43
}(PO
 
4
)
 
36
8.AC.50Xenophyllite
Na
 
4
Fe
2+
7
(PO
 
4
)
 
6
8.AC.55Harrisonite
Ca(Fe
2+
 
,Mg)
 
6
(PO
 
4
)
 
2
(SiO
 
4
)
 
2
8.AC.60Kosnarite
KZr
 
2
(PO
 
4
)
 
3
8.AC.65Panethite
(Na,Ca)
 
2
(Mg,Fe
2+
 
)
 
2
(PO
 
4
)
 
2
8.AC.70Stanfieldite
Ca
 
7
Ca
 
2
Mg
 
9
(PO
 
4
)
 
12
8.AC.75Ronneburgite
K
 
2
MnV
 
4
O
 
12
8.AC.80Tillmannsite
(Ag
 
3
Hg)(VO
 
4
,AsO
 
4
)
8.AC.85Filatovite
K(Al,Zn)
 
2
(As,Si)
 
2
O
 
8
Related Minerals - Dana Grouping):

- +
38.2.7.1O'Danielite
Na(Zn,Mg)
 
3
H
 
2
(AsO
 
4
)
 
3
38.2.7.2Johillerite
Na(Mg,Zn)
 
3
Cu(AsO
 
4
)
 
3
38.2.7.5Yazganite
NaFe
3+
2
(Mg,Mn
2+
 
)(AsO
 
4
)
 
3
· H
 
2
O

Other Names for Nickenichite

Synonyms:
IMA1992-014
Other Languages:
German:Nickenichit
Russian:Никенихит
Spanish:Nickenichita

Other Information

Fluorescence in UV light:Not fluorescent.
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 Nickenichite

Reference List:

- +
Auernhammer, M., Effenberger, H., Hentschel, G., Reinecke, Th. and Tillmanns, E. (1993): Nickenichite, a new arsenate from the Eifel, Germany. Mineralogy and Petrology, 48, 153-166.

New Minerals (1997), New Minerals 1990-1994.

Internet Links for Nickenichite

Search Engines:
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  • External Links:
  • Look for Nickenichite on Webmineral
  • Look for Nickenichite on Athena Mineralogy
  • Look for Nickenichite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Mineral Dealers:
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  • Fabre Minerals - search for Nickenichite specimens
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  • Search for Nickenichite on Well-Arranged Molecules
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
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  • Find Nickenichite on www.crystalclassics.co.uk
  • SpiriferMinerals.com - high quality low prices
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  • Localities for Nickenichite

    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.
    Germany
     
    • Rhineland-Palatinate
      • Eifel
        • Andernach
          • Eich
            • Nickenicher Sattel (Eicher Sattel)
    Auerhammer, M., Effenberger, H., Hentschel, G., Reinecke, T., Tillmanns, E. (1993): Nickenichite, a new Arsenate from the Eifel, Germany, Mineralogy and Petrology 48, 153-166
          • Nickenich
    Blass, G., Emmerich, F., Graf, HW., Schäfer, Ch., Tschörtner, J., (2006): Minerale der Eifelvulkane, Version 1.0, CD, published by authors
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