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Bariopharmacosiderite Mineral Data

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General Bariopharmacosiderite Information

Help on Chemical  Formula: Chemical Formula: BaFe+++4(AsO4)3(OH)5•5(H2O)
Help on Composition: Composition: Molecular Weight = 952.59 gm
   Barium    14.42 %  Ba   16.10 % BaO
   Iron      23.45 %  Fe   33.53 % Fe2O3
   Arsenic   23.60 %  As   36.19 % As2O5
   Hydrogen   1.59 %  H    14.18 % H2O
   Oxygen    36.95 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: BaFe3+4(AsO4)3(OH)5•5(H2O)
Help on IMA Status: IMA Status: Approved IMA 1966
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the barium analog of pharmacosiderite.
Help on Synonym: Synonym: Barium-pharmacosiderite - Renamed Bariopharmacosiderite by Mineralogical Record, v39 (2008), p131
 

Bariopharmacosiderite Image

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  Bariopharmacosiderite

Comments: Reddish brown, crystal of barium-pharmacosiderite on matrix.
Location: Clara Mine, Wolfach, Baden-Wurt., Germany. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Bariopharmacosiderite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.01274
Help on Cell Dimensions: Cell Dimensions: a = 15.85, c = 16.052, Z = 8; V = 4,032.62 Den(Calc)= 3.14
Help on Crystal System: Crystal System: Tetragonal - Scalenohedral H-M Symbol (4 2m) Space Group: I 42m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.962(1), 3.24(0.75), 4.017(0.75),
 

Physical Properties of Bariopharmacosiderite

Help on Color: Color: Brown.
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Vitreous (Glassy)
 

Optical Properties of Bariopharmacosiderite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.221 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1815,KC= 0.2331
Ncalc = 1.73
Help on Optical Data: Optical Data: Uniaxial (+/-), a=1.57, b=1.57, bire=0.0000.
 

Calculated Properties of Bariopharmacosiderite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.97 gm/cc
note: Specific Gravity of Bariopharmacosiderite =3.14 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEBariopharmacosiderite = 84.60 barns/electron
U=PEBariopharmacosiderite x rElectron Density= 250.99 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Bariopharmacosiderite is Not Radioactive
 

Bariopharmacosiderite Classification

Help on  Dana Class: Dana Class: 42.08.01.03 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
  (42.08)where (AB)7 (XO4)4 Zq � x(H2O)
  (42.08.01)Pharmacosiderite Group
 
42.08.01.01 Pharmacosiderite KFe4(AsO4)3(OH)4•6-7(H2O) I 43m 4 3m
 
42.08.01.02 Alumopharmacosiderite KAl4(AsO4)3(OH)4•6•5(H2O) P 43m 4 3m
 
42.08.01.03 Bariopharmacosiderite BaFe4(AsO4)3(OH)5•5(H2O) I 42m 4 2m
 
42.08.01.04 Barium-alumopharmacosiderite? BaAl4(AsO4)3(OH)5•5(H2O) P 43m ? 4 3m
 
42.08.01.05 Natropharmacosiderite (Na,K)2Fe4(AsO4)3(OH)5•7(H2O) P 43m 4 3m
Help on  Strunz Class: Strunz Class: 08.DK.10 08 - PHOSPHATES, ARSENATES, VANADATES
  08.D - Phosphates, etc
  08.DK -With large and medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1
 
08.DK.10 Alumopharmacosiderite KAl4(AsO4)3(OH)4•6•5(H2O) P 43m 4 3m
 
08.DK.10 Barium-alumopharmacosiderite? BaAl4(AsO4)3(OH)5•5(H2O) P 43m ? 4 3m
 
08.DK.10 Bariopharmacosiderite BaFe4(AsO4)3(OH)5•5(H2O) I 42m 4 2m
 
08.DK.10 Barium-zinc-alumopharmacosiderite* (Ba,K)0.5(Zn,Cu)0.5(Al,Fe)4(AsO4)3•5(H2O) I 42m 4 2m
 
08.DK.10 Pharmacosiderite KFe4(AsO4)3(OH)4•6-7(H2O) I 43m 4 3m
 
08.DK.10 Natropharmacosiderite (Na,K)2Fe4(AsO4)3(OH)5•7(H2O) P 43m 4 3m
 

Other Bariopharmacosiderite Information

Help on References: References: PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Bariopharmacosiderite :
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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Bariopharmacosiderite

BaFe+++4(AsO4)3(OH)5•5(H2O)
Dana No: 42.08.01.03 Strunz No: 08.DK.10
Locality:

 

Notes:

 

 
   
 


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