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Lotharmeyerite Mineral Data

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General Lotharmeyerite Information

Help on Chemical  Formula: Chemical Formula: CaZnMn+++(AsO3OH)4(OH)3
Help on Composition: Composition: Molecular Weight = 491.28 gm
   Calcium     8.16 %  Ca   11.41 % CaO
   Manganese  11.18 %  Mn   16.07 % Mn2O3
   Zinc       13.31 %  Zn   16.57 % ZnO
   Arsenic    30.50 %  As   46.78 % As2O5
   Hydrogen    1.03 %  H     9.17 % H2O
   Oxygen     35.82 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CaZnMn3+(AsO3OH)2(OH)3
Help on IMA Status: IMA Status: Approved IMA 1983
Help on Locality: Locality: Ojuela mine, Mapimi, DGO, Mexico. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Julius Lothar Meyer (1830-1895), German chemist who developed concepts for the periodic table.
Help on Name Pronunciation: Name Pronunciation: Lotharmeyerite + Pronunciation Say LOTHARMEYERITE

Lotharmeyerite Image

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Comments: Brown, prismatic crystals lotharmeyerite on matrix.
Location: Ojuela mine, Mapimi, Durango, Mexico. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Lotharmeyerite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.4445:1:1.1803
Help on Cell Dimensions: Cell Dimensions: a = 9.066, b = 6.276, c = 7.408, Z = 2; beta = 116.16° V = 378.33 Den(Calc)= 4.31
Help on Crystal System: Crystal System: Monoclinic Space Group: C 2/m,C 2,Cm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.557(1), 3.175(0.9), 3.414(0.9),

Physical Properties of Lotharmeyerite

Help on Color: Color: Dark reddish orange, Reddish brown, Red orange.
Help on Density: Density: 4.23
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Habit: Habit: Druse - Crystal growth in a cavity which results in numerous crystal tipped surfaces.
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: orange

Optical Properties of Lotharmeyerite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.073 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.091 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1869,KPDmeas= 0.1904,KC= 0.2055
Ncalc = 1.87 - 1.89
Help on Optical Data: Optical Data: Biaxial (+), a=1.797, b=1.804, g=1.815, bire=0.0180, 2V(Calc)=78, 2V(Meas)=80.
Help on Pleochroism (x): Pleochroism (x): dark red orange.
Help on Pleochroism (y): Pleochroism (y): red orange.
Help on Pleochroism (z): Pleochroism (z): light pink orange.

Calculated Properties of Lotharmeyerite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.03 gm/cc
note: Specific Gravity of Lotharmeyerite =4.23 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0057407478
Boson Index = 0.9942592522
Help on Photoelectric: Photoelectric: PELotharmeyerite = 31.39 barns/electron
U=PELotharmeyerite x rElectron Density= 126.48 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Lotharmeyerite is Not Radioactive

Lotharmeyerite Classification

Help on  Dana Class: Dana Class: (37)Anhydrous Acid Phosphates, etc
  (37.01)with miscellaneous formulae
  (37.01.06)Lotharmeyerite Series Lotharmeyerite CaZnMn(AsO3OH)4(OH)3 C 2/m,C 2,Cm Mono Ferrilotharmeyerite Ca(Zn,Cu)(Fe,Zn)(AsO4)2(OH,H2O)2 C 2/m 2/m Cobaltlotharmeyerite! Ca(Co,Fe,Ni)2(AsO4)2(OH,H2O)2 C 2/m 2/m Nickellotharmeyerite! Ca(Ni,Fe,Co)2(AsO4)2(OH,H2O)2 C 2/m 2/m
Help on  Strunz Class: 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 Lotharmeyerite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Lotharmeyerite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Dana No: Strunz No: 08.CG.15





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