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Nickellotharmeyerite

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Formula:
Ca(Ni,Fe3+,Co)2(AsO4)2 · 2(H2O,OH)
System:
Monoclinic
Colour:
brown, red-brown, yellow
Lustre:
Resinous
Hardness:
Name:
For its relationship with Lotharmeyerite
This page provides mineralogical data about Nickellotharmeyerite.


Classification of Nickellotharmeyerite

Approved
Approval Year:
1999
8.CG.15

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
G : With large and medium-sized cations, RO4:H2O = 1:1

Physical Properties of Nickellotharmeyerite

Resinous
Diaphaneity (Transparency):
Transparent
Colour:
brown, red-brown, yellow
Streak:
light brown to yellow
Hardness (Mohs):
Hardness (Vickers):
VHN25=500 kg/mm2
Hardness Data:
Measured
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Conchoidal
Density:
4.45 g/cm3 (Calculated)

Optical Data of Nickellotharmeyerite

Type:
Biaxial (+)
RI values:
nα = 1.800 nβ = 1.810 nγ = 1.870
2V:
Measured: 40°
Max Birefringence:
δ = 0.070
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Very High
Pleochroism:
Strong
Comments:
X=yellow
Y=brown
Z=pale yellow
X≈c
Y=b
Z^a ≈ 25°

Chemical Properties of Nickellotharmeyerite

Formula:
Ca(Ni,Fe3+,Co)2(AsO4)2 · 2(H2O,OH)
IMA Formula:
CaNi2(AsO4)2 · 2H2O
Elements listed in formula:
Analytical Data:
average values out of eleven sets of electron microprobe data
CaO (9.29%)
NiO (12.86%)
CoO (3.83%)
CuO (0.11%)
ZnO (0.62%)
PbO (0.90%)
Fe2O3 (12.88%)
Bi2O3 (8.56%)
P2O5 (0.23%)
As2O5 (45.32%)
SO3 (0.12%)
H2O (5.35%)

Total: 100.07 wt.%
Common Impurities:
Bi

Crystallography of Nickellotharmeyerite

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Cell Parameters:
a = 9.005 Å, b = 6.205 Å, c = 7.411 Å
β = 115.31°
Ratio:
a:b:c = 1.451 : 1 : 1.194
Unit Cell Volume:
V 374.4 ų
Z:
2
X-Ray Powder Diffraction Data:
d-spacingIntensity
3.393 (55)
3.182 (76)
2.962 (100)
2.816 (66)
2.703 (66)
2.538 (75)
1.697 (53)

Type Occurrence of Nickellotharmeyerite

General Appearance of Type Material:
minute tabular crystals to 0.1 mm, elongated on [010]
Geological Setting of Type Material:
in quartz casts of decomposed nickel and cobalt arsenides, in the oxidation zone of the deposit
Empirical Formula:
(Ca0.83Bi0.18)Σ1.01(Ni0.86Fe3+0.81Co0.26Zn0.04Pb0.02Cu0.01)Σ2.00[(AsO4)1.98(PO4)0.02(SO4)0.01]Σ2.01[(H2O)1.00(OH)0.99]Σ1.99

Relationship of Nickellotharmeyerite to other Species

8.CG.05CassidyiteCa2(Ni2+,Mg)(PO4)2 · 2H2O
8.CG.05CollinsiteCa2(Mg,Fe2+)(PO4)2 · 2H2O
8.CG.05FairfielditeCa2(Mn2+,Fe2+)(PO4)2 · 2H2O
8.CG.05GaititeCa2Zn(AsO4)2 · 2H2O
8.CG.05MesseliteCa2(Fe2+,Mn2+)(PO4)2 · 2H2O
8.CG.05ParabrandtiteCa2Mn2+(AsO4)2 · 2H2O
8.CG.05β-RoseliteCa2(Co2+,Mg)(AsO4)2 · 2H2O
8.CG.05TalmessiteCa2Mg(AsO4)2 · 2H2O
8.CG.05HilliteCa2(Zn,Mg)(PO4)2 · 2 H2O
8.CG.10BrandtiteCa2(Mn2+,Mg)(AsO4)2 · 2H2O
8.CG.10RoseliteCa2(Co2+,Mg)(AsO4)2 · 2H2O
8.CG.10WendwilsoniteCa2Mg(AsO4)2 · 2H2O
8.CG.10ZincroseliteCa2Zn(AsO4)2 · 2H2O
8.CG.10RruffiteCa2Cu(AsO4)2 · 2H2O
8.CG.15FerrilotharmeyeriteCa(Fe3+,Zn)2(AsO4)2 · 2(OH,H2O)
8.CG.15LotharmeyeriteCa(Zn,Mn3+)2(AsO4)2 · 2(H2O,OH)
8.CG.15MawbyitePb(Fe3+,Zn)2(AsO4)2 · 2(OH,H2O)
8.CG.15MounanaitePbFe23+(VO4)2(OH,F)2
8.CG.15ThometzekitePb(Cu,Zn)2(AsO4,SO4)2 · 2(H2O,OH)
8.CG.15TsumcoritePbZn2(AsO4)2 · 2H2O
8.CG.15CobaltlotharmeyeriteCa(Co,Fe3+,Ni)2(AsO4)2 · 2(H2O,OH)
8.CG.15CabalzariteCa(Mg,Al,Fe3+)2(AsO4)2(OH,H2O)2
8.CG.15KrettnichitePbMn23+(VO4)2(OH)2
8.CG.15CobalttsumcoritePb(Co,Fe3+,Ni)2(AsO4)2 · 2(H2O,OH)
8.CG.15ManganlotharmeyeriteCaMn23+(AsO4)2(OH)2
8.CG.15Schneebergite(Bi3+,Ca)(Co,Ni,Fe3+)2(AsO4)2(OH,H2O)2
8.CG.15Nickelschneebergite(Bi3+,Ca)(Ni,Co,Fe3+)2(AsO4)2 · 2(OH,H2O)
8.CG.20GartrellitePb(Cu,Fe3+,Zn)2(AsO4,SO4)2 · 2(H2O,OH)
8.CG.20HelmutwinkleritePb(Zn,Cu)2(AsO4)2 · 2H2O
8.CG.20ZincgartrellitePb(Zn,Fe3+,Cu)2(AsO4)2 · 2(H2O,OH)
8.CG.20RappolditePb(Co,Ni,Zn)2(AsO4)2 · 2H2O
8.CG.20PhosphogartrellitePb(Cu,Fe3+)2(PO4,AsO4)2 · 2(H2O,OH)
8.CG.20LukrahniteCa(Cu,Zn)(Fe3+,Zn)(AsO4)2 · 2(H2O,OH)
8.CG.25Pottsite(Pb3xBi4-2x)(VO4)4·H2O (0.8 < x < 1.0)
8.CG.35NickeltalmessiteCa2Ni(AsO4)2 · 2H2O

Other Names for Nickellotharmeyerite

Name in Other Languages:

Other Information

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Nickellotharmeyerite

Reference List:
Krause, W., Bernhardt, H.-J., Effenberger, H., and Martin, M. (2001): Cobalttsumcorite and nickellotharmeyerite, two new minerals from Schneeberg, Germany: description and crystal structure. Neues Jahrbuch für Mineralogie-Monatshefte (2001): 558-576.

Internet Links for Nickellotharmeyerite

mindat.org URL:
https://www.mindat.org/min-11004.html
Please feel free to link to this page.

Localities for Nickellotharmeyerite

This 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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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
 
  • Saxony
    • Erzgebirge
      • Schneeberg District
Lapis 30(7/8):69 (2005)
        • Wolfgang Maaßen Mine field
Neues Jahrb. Mineral. Mon. 558-576
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
      • Lavrion District Mines
        • Lavrion (Laurion; Laurium)
LAPIS 2010 7/8, 14 (Kristalldruse ad); Kolitsch, U., Rieck, B., Brandstätter, F., Schreiber, F., Fabritz, K. H., Blaß, G. & Gröbner, J. (2014): Neufunde aus dem altem Bergbau und den Schlacken von Lavrion (I). Mineralien-Welt 25 (1), 60-75 (in German); Pekov, I.V., Chukanov, N.V., Varlamov, D.A., Belakovskiy, D.I., Turchkova, A.G., Voudouris, P., Katerinopoulos, A., Magganas, A. (2016): Nickeltsumcorite, Pb(Ni,Fe3+)2(AsO4)2(H2O,OH)2, a new tsumcorite-group mineral from Lavrion, Greece. Mineralogical Magazine (in press)
Morocco
 
  • Drâa-Tafilalet Region
    • Ouarzazate Province
      • Tazenakht
        • Bou Azer District (Bou Azzer District)
          • Aït Ahmane
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
Mineral and/or Locality  
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