Ferrilotharmeyerite Mineral Data

Ferrilotharmeyerite Mineral Data
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General Ferrilotharmeyerite Information

Help on Chemical Formula: Chemical Formula: Ca(Zn,Cu++)(Fe+++,Zn)(AsO4)2(OH,H2O)2
Help on Composition: Composition: Molecular Weight = 490.79 gm
   Calcium    7.35 %  Ca   10.28 % CaO
   Zinc      10.66 %  Zn   13.27 % ZnO
   Iron      10.24 %  Fe   14.64 % Fe2O3
   Copper     3.88 %  Cu    4.37 % Cu2O
   Arsenic   30.53 %  As   46.83 % As2O5
   Hydrogen   0.51 %  H     4.59 % H2O
   Lead       4.22 %  Pb    4.55 % PbO
   Oxygen    32.60 %  O
            ______        ______ 
            100.00 %       98.53 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca0.9Pb0.1Fe3+0.9Zn0.8Cu0.3(AsO4)2(OH)1.5(H2O)0.5
Help on Environment: Environment: On museum specimens from a dolostone-hosted hydrothermal polymetallic ore deposit.
Help on IMA Status: IMA Status: Approved IMA 1992
Help on Locality: Locality: Tsumeb, Namibia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: As the ferric iron analog of lotharmeyerite
Help on Synonym: Synonym: ICSD 76614
  IMA1986-024
  PDF 45-1390
 

Ferrilotharmeyerite Image

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Ferrilotharmeyerite

Comments: Brown crystalline aggregates of ferrilotharmeyerite on quartz.
Location: Pucher Shaft, Schneeberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 6 mm.
© Thomas Witzke / Abraxas-Verlag

Ferrilotharmeyerite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.4437:1:1.1841
Help on Cell Dimensions: Cell Dimensions: a = 9.006, b = 6.238, c = 7.387, Z = 2; beta = 115.54° V = 374.45 Den(Calc)= 4.35
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.938(1), 3.175(1), 3.398(1),
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Krause W , Belendorff K , Bernhardt H J , McCammon C A , Effenberger H , Mikenda W , European Journal of Mineralogy , 10 (1998) p.179-206, Crystal chemistry of the tsumcorite-group minerals. New data on ferrilotharmeyerite,, tsumcorite, thometzekite, mounanaite, helmutwinklerite, and a redefinition of gartrellite

 

Physical Properties of Ferrilotharmeyerite

Help on Cleavage: Cleavage: {001} Good
Help on Color: Color: Brownish yellow, Yellow brown.
Help on Density: Density: 4.25
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Subhedral Crystals - Occurs as crystals which tend to exhibit a recognizable crystal shape.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Habit: Habit: Wedge shaped - Crystals shaped like a wedge.
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Adamantine - Greasy
Help on Streak: Streak: light yellow
 

Optical Properties of Ferrilotharmeyerite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.012 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.011 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1943,KPDmeas= 0.1988,KC= 0.1964
Ncalc = 1.83 - 1.85
Help on Optical Data: Optical Data: Biaxial (+), a=1.83, b=1.835, g=1.87, bire=0.0400, 2V(Calc)=44, 2V(Meas)=40. Dispersion r > v distinct.
Help on Pleochroism (x): Pleochroism (x): olive green or orange.
Help on Pleochroism (y): Pleochroism (y): pale green or yellow.
Help on Pleochroism (z): Pleochroism (z): colorless or colorless.
 

Calculated Properties of Ferrilotharmeyerite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.09 gm/cc
note: Specific Gravity of Ferrilotharmeyerite =4.35 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEFerrilotharmeyerite = 101.22 barns/electron
U=PEFerrilotharmeyerite x rElectron Density= 414.12 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ferrilotharmeyerite is Not Radioactive
 

Ferrilotharmeyerite Classification
Help on Dana Class: Dana Class: 37.01.06.02 (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
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 Ferrilotharmeyerite Information
Help on References: References: NAME( AntBidBlaNic4) PHYS. PROP.(37th List of New Min.,Min. Mag.,1996) OPTIC PROP.(AntBidBlaNic4)
Help on See Also: See Also: Links to other databases for Ferrilotharmeyerite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Ecole des Mines de Paris
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - MinMax(Deutsch)
10 - MinMax(English)
11 - Mineralienatlas (Deutsch)
12 - QUT Mineral Atlas
13 - Ruff.Info
14 - WWW-MINCRYST

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Ferrilotharmeyerite

Ca(Zn,Cu++)(Fe+++,Zn)(AsO4)2(OH,H2O)2
Dana No: 37.01.06.02 Strunz No: 08.CG.15
Locality:

 

Notes: