Nickellotharmeyerite Mineral Data
General Nickellotharmeyerite Information
Chemical Formula:
Ca(Ni,Fe,Co)2(AsO4)2(OH,H2O)2
Composition:
Molecular Weight = 501.90 gm
Calcium 6.39 % Ca 8.94 % CaO
Iron 8.90 % Fe 11.45 % FeO
Cobalt 3.52 % Co 4.48 % CoO
Nickel 10.52 % Ni 13.39 % NiO
Bismuth 8.33 % Bi 9.28 % Bi2 O3
Arsenic 29.86 % As 45.79 % As2 O5
Hydrogen 0.60 % H 5.38 % H2 O
Oxygen 31.88 % O
______ ______
100.00 % 98.72 % = TOTAL OXIDE
Empirical Formula:
Ca0.8 Bi0.2 Ni0.9 Fe2+ 0.8 Co0.3 (AsO4 )2 (OH)•(H2 O)
Environment:
Secondary mineral found in dump material from the oxidation zone.
IMA Status:
Approved IMA 1999 (Dana # Added)
Locality:
Pucher shaft, Schneeberg-Neustadtel, Saxony, Germany. Link to MinDat.org Location Data.
Name Origin:
Named to indicate the chemical and structural similarities with lotharmeyerite.
Synonym:
IMA1999-008
Nickellotharmeyerite Image
Images:
Nickellotharmeyerite Crystallography
Axial Ratios:
a:b:c =1.4512:1:1.1943
Cell Dimensions:
a = 9.005, b = 6.205, c = 7.411, Z = 2; beta = 115.31° V = 374.35 Den(Calc)= 4.45
Crystal System:
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m
X Ray Diffraction:
By Intensity(I/Io ): 2.962(1)(201), 3.182(0.87)(112 ), 3.393(0.83)(202 ),
2.538(0.75)(221 ), 2.703(0.66)(311 ), 1.697(0.57)(331 ,420,511
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Physical Properties of Nickellotharmeyerite
Cleavage:
None
Color:
Brown, Yellow.
Diaphaneity:
Transparent to Translucent
Fracture:
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Habit:
Aggregates - Made of numerous individual crystals or clusters.
Habit:
Encrustations - Forms crust-like aggregates on matrix.
Habit:
Microscopic Crystals - Crystals visible only with microscopes.
Hardness:
4.5 - Between Fluorite and Apatite
Luster:
Vitreous (Glassy)
Streak:
light brownish yellow
Optical Properties of Nickellotharmeyerite
Gladstone-Dale:
CI calc = -0.04 (Good) - where the CI = (1-KPDcalc /KC ) KPDcalc = 0.1858,KC = 0.1786 Ncalc = 1.79
Optical Data:
Biaxial (+), a=1.8, b=1.81, g=1.87, bire=0.0700
Calculated Properties of Nickellotharmeyerite
Electron Density:
Bulk Density (Electron Density)=4.18 gm/cc note: Specific Gravity of Nickellotharmeyerite =4.45 gm/cc.
Fermion Index:
Fermion Index = 0.0033166479 Boson Index = 0.9966833521
Photoelectric:
PENickellotharmeyerite = 172.45 barns/electronU=PENickellotharmeyerite x r Electron Density= 720.76 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Nickellotharmeyerite is Not Radioactive
Nickellotharmeyerite Classification
Dana Class:
37.01.06.04 (37) Anhydrous Acid Phosphates, etc
(37.01) with miscellaneous formulae
(37.01.06) Lotharmeyerite Series
37.01.06.01 Lotharmeyerite CaZnMn(AsO3OH)4(OH)3 C 2/m,C 2,Cm Mono
37.01.06.02 Ferrilotharmeyerite Ca(Zn,Cu)(Fe,Zn)(AsO4)2(OH,H2O)2 C 2/m 2/m
37.01.06.03 Cobaltlotharmeyerite ! Ca(Co,Fe,Ni)2(AsO4)2(OH,H2O)2 C 2/m 2/m
37.01.06.04 Nickellotharmeyerite ! Ca(Ni,Fe,Co)2(AsO4)2(OH,H2O)2 C 2/m 2/m
Strunz Class:
08.CG.15 08 - PHOSPHATES, ARSENATES, VANADATES
08.C - Phosphates without Additional Anions, with H2O
08.CG -With large and medium-sized cations, RO4:H2O = 1:1
08.CG.15 Cobaltlotharmeyerite ! Ca(Co,Fe,Ni)2(AsO4)2(OH,H2O)2 C 2/m 2/m
08.CG.15 Ferrilotharmeyerite Ca(Zn,Cu)(Fe,Zn)(AsO4)2(OH,H2O)2 C 2/m 2/m
08.CG.15 Cabalzarite ! Ca(Mg,Al,Fe)2(AsO4)2(H2O,OH)2 C 2/m 2/m
08.CG.15 Mawbyite Pb(FeZn)2(AsO4)2(OH,H2O)2 C 2/m 2/m
08.CG.15 Lotharmeyerite CaZnMn(AsO3OH)4(OH)3 C 2/m,C 2,Cm Mono
08.CG.15 Mounanaite PbFe2(VO4)2(OH)2 P1 1
08.CG.15 Tsumcorite PbZnFe(AsO4)2•(H2O) C 2/m 2/m
08.CG.15 Thometzekite Pb(Cu,Zn)2(AsO4)2•2(H2O) C 2/m 2/m
08.CG.15 Cobalttsumcorite ! Pb(Co,Fe)2(AsO4)2(OH,H2O)2 C 2/m 2/m
08.CG.15 Manganlotharmeyerite ! Ca(Mn,Mg,)2(AsO4)2(OH,H2O)2 C 2/m 2/m
08.CG.15 Nickellotharmeyerite ! Ca(Ni,Fe,Co)2(AsO4)2(OH,H2O)2 C 2/m 2/m
08.CG.15 Krettnichite ! PbMn2(VO4)2(OH)2 C 2/m 2/m
08.CG.15 Schneebergite ! Bi(Co,Ni)2(AsO4)2(OH,H2O)2 C 2/m 2/m
08.CG.15 Nickelschneebergite ! Bi(Ni,Co)2(AsO4)2(OH,H2O)2 C 2/m 2/m
Other Nickellotharmeyerite Information
References:
NAME( AmMin, vol 87, p 997) PHYS. PROP.(AmMin, vol 87, p 997) OPTIC PROP.(AmMin, vol 87, p 997)
See Also:
Links to other databases for Nickellotharmeyerite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info
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Nickellotharmeyerite
Ca(Ni,Fe,Co)2(AsO4)2(OH,H2O)2
Dana No: 37.01.06.04 Strunz No: 08.CG.15
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