Nickellotharmeyerite Mineral Data

Nickellotharmeyerite Mineral Data

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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 % Bi₂O₃

Arsenic 29.86 % As 45.79 % As₂O₅

Hydrogen 0.60 % H 5.38 % H₂O

Oxygen 31.88 % O

______ ______

100.00 % 98.72 % = TOTAL OXIDE

Empirical Formula:

Ca_0.8Bi_0.2Ni_0.9Fe²⁺_0.8Co_0.3(AsO₄)₂(OH)·(H₂O)

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

Comments: Brown, microcrystalline nickellotharmeyerite.
Location: Pucher Shaft, Schneeberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag

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 - PrismaticH-M Symbol (2/m) Space Group: C 2/m

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 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

Forms:

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Crystal Structure:

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Krause W , Bernhardt H J , Effenberger H , Martin M , Neues Jahrbuch fur Mineralogie, Monatshefte , 2001 (2001) p.588-576, Cobalttsumcorite and nickellotharmeyerite, two new minerals from, Schneeberg, Germany: description and crystal structure, Locality: Schneeberg, Germany

Physical Properties of Nickellotharmeyerite

Cleavage:

None

Color:

Brown, Yellow.

Diaphaniety:

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

Optical Data:

Biaxial (+), a=1.8, b=1.81, g=1.87, bire=0.0700

Calculated Properties of Nickellotharmeyerite

Electron Density:

r_electron=4.18 gm/cc
note: r_{Nickellotharmeyerite}=4.45 gm/cc.

Fermion Index

Fermion Index = 0.00331
Boson Index = 0.99669

Photoelectric:

PE_{Nickellotharmeyerite}= 172.45 barns/electron
U=PE_{Nickellotharmeyerite} x r_electron= 720.76 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Nickellotharmeyerite is Not Radioactive

Nickellotharmeyerite Classification

Dana Class:

37.1.6.4 (37)Anhydrous Acid Phosphates, etc

(37.1)with miscellaneous formulae

(37.1.6)Dana Group

37.1.6.1 Lotharmeyerite CaZnMn(AsO3OH)4(OH)3 C 2/m,C 2,Cm Mono

37.1.6.2 Ferrilotharmeyerite Ca(Zn,Cu)(Fe,Zn)(AsO4)2(OH,H2O)2 C 2/m 2/m

37.1.6.3 Cobaltlotharmeyerite! Ca(Co,Fe,Ni)2(AsO4)2(OH,H2O)2 C 2/m 2/m

37.1.6.4 Nickellotharmeyerite ! Ca(Ni,Fe,Co)2(AsO4)2(OH,H2O)2 C 2/m 2/m

Strunz Class:

VII/C.31-08 VII - Phosphates, Arsenates and Vanadates

VII/C - Water-bearing phosphates without unfamiliar anions, cations of medium and big size: Fe, Mn, Zn, Mg and Ca, (NH4)1+

VII/C.31 - Mawbyite - Gartrellite series

VII/C.31-02 Schneebergite! Bi(Co,Ni)2(AsO4)2(OH,H2O)2 C 2/m 2/m

VII/C.31-04 Nickelschneebergite! Bi(Ni,Co)2(AsO4)2(OH,H2O)2 C 2/m 2/m

VII/C.31-05 Mawbyite Pb(FeZn)2(AsO4)2(OH,H2O)2 C 2/m 2/m

VII/C.31-06 Cabalzarite! Ca(Mg,Al,Fe)2(AsO4)2(H2O,OH)2 C 2/m 2/m

VII/C.31-08 Nickellotharmeyerite Ca(Ni,Fe,Co)2(AsO4)2(OH,H2O)2 C 2/m 2/m

VII/C.31-10 Ferrilotharmeyerite Ca(Zn,Cu)(Fe,Zn)(AsO4)2(OH,H2O)2 C 2/m 2/m

VII/C.31-20 Lotharmeyerite CaZnMn(AsO3OH)4(OH)3 C 2/m,C 2,Cm Mono

VII/C.31-30 Manganlotharmeyerite! Ca(Mn,Mg,)2(AsO4)2(OH,H2O)2 C 2/m 2/m

VII/C.31-35 Cobaltlotharmeyerite! Ca(Co,Fe,Ni)2(AsO4)2(OH,H2O)2 C 2/m 2/m

VII/C.31-36 Cobalttsumcorite! Pb(Co,Fe)2(AsO4)2(OH,H2O)2 C 2/m 2/m

VII/C.31-40 Thometzekite Pb(Cu,Zn)2(AsO4)2·2(H2O) C 2/m 2/m

VII/C.31-50 Tsumcorite PbZnFe(AsO4)2·(H2O) C 2/m 2/m

VII/C.31-74 Krettnichite! PbMn2(VO4)2(OH)2 C 2/m 2/m

VII/C.31-78 Lukrahnite! Ca(Cu,Zn)(Fe,Zn)(AsO4)2(OH,H2O)2 P1 1

VII/C.31-80 Phosphogartrellite! PbCuFe(PO4)2(OH,H2O)2 P1 1

VII/C.31-90 Gartrellite Pb(Cu,Fe)2(AsO4,SO4)2(CO3,H2O)0.7 P1,P 1 Tri

VII/C.31-92 Zincgartrellite! Pb(Zn,Fe,Cu)2(AsO4)2(OH,H2O)2 P1 1

VII/C.31-98 Rappoldite! Pb(Co,Ni,Zn,)2(AsO4)2·2(H2O) P1 1

VII/C.31-100 Helmutwinklerite PbZn2(AsO4)2·2(H2O) P1 1

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 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch) 9 -QUT Mineral Atlas

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Print or Cut-and-Paste your Nickellotharmeyerite Specimen Label here :

Nickellotharmeyerite

Ca(Ni,Fe,Co)2(AsO4)2(OH,H2O)2
Dana No: 37.1.6.4 Strunz No: VII/C.31-08
Locality:

Notes: