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Barium-zinc-alumopharmacosiderite Mineral Data

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General Barium-zinc-alumopharmacosiderite Information

Help on Chemical  Formula: Chemical Formula: (Ba,K)0.5(Zn,Cu)0.5(Al,Fe)4(AsO4)3•5(H2O)
Help on Composition: Composition: Molecular Weight = 689.30 gm
   Potassium   0.28 %  K     0.34 % K2O
   Barium      3.98 %  Ba    4.45 % BaO
   Aluminum   11.74 %  Al   22.19 % Al2O3
   Zinc        1.90 %  Zn    2.36 % ZnO
   Iron        8.10 %  Fe   11.58 % Fe2O3
   Copper      0.46 %  Cu    0.58 % CuO
   Arsenic    32.61 %  As   50.02 % As2O5
   Hydrogen    1.46 %  H    13.07 % H2O
   Oxygen     39.46 %  O
             ______        ______ 
             100.00 %      104.58 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: 0.5(Ba0.4)0.5(K0.1)0.5(Zn0.4)0.5(Cu0.1)Al3Fe3+(AsO4)3�5(H2O)
Help on IMA Status: IMA Status: Not Approved IMA
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the Ba and Zn analog of pharmacosiderite.

Barium-zinc-alumopharmacosiderite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.01285
Help on Cell Dimensions: Cell Dimensions: a = 15.476, c = 15.675, Z = 6; V = 3,754.27 Den(Calc)= 1.83
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): 7.736(1), 7.824(1), 2.754(0.6),

Physical Properties of Barium-zinc-alumopharmacosiderite

Help on Color: Color: Colorless, Yellow.
Help on Density: Density: 2.8
Help on Diaphaneity: Diaphaneity: Transparent
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luster: Luster: Vitreous (Glassy)

Optical Properties of Barium-zinc-alumopharmacosiderite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.077 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= -0.413 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.3093,KPDmeas= 0.2021,KC= 0.2189
Ncalc = 1.4 - 1.61
Help on Optical Data: Optical Data: Uniaxial (-), e=1.56, w=1.572, bire=0.0120.

Calculated Properties of Barium-zinc-alumopharmacosiderite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.68 gm/cc
note: Specific Gravity of Barium-zinc-alumopharmacosiderite =2.80 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.009788666
Boson Index = 0.990211334
Help on Photoelectric: Photoelectric: PEBarium-zinc-alumopharmacosiderite = 42.80 barns/electron
U=PEBarium-zinc-alumopharmacosiderite x relectron= 114.61 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 3.92 (Gamma Ray American Petroleum Institute Units)
Concentration of Barium-zinc-alumopharmacosiderite per GRapi unit = 25.53 (%)

Estimated Radioactivity from Barium-zinc-alumopharmacosiderite - barely detectable


Barium-zinc-alumopharmacosiderite Classification

Help on  Dana Class: Dana Class: (37)Phosphate Minerals
  (37.00)Without Dana Classification Numbers
  (37.00.00)Arsenate, Hydrated Arnhemite* (K,Na)2Mg2(P2O7)•5(H2O) Unk Hex Arsenowaylandite* BiAl3(AsO4)2(OH)6 R 3m 3 2/m Auroantimonate* AuSbO3 Ortho ? Ortho Barium-zinc-alumopharmacosiderite* (Ba,K)0.5(Zn,Cu)0.5(Al,Fe)4(AsO4)3•5(H2O) I 42m 4 2m Chernovite-(Ce)* (Ce,Y)(AsO4) I 41/amd 4/m 2/m 2/m Churchite-(Dy)* (Dy,Sm,Gd,Nd)(PO4)•2(H2O) Mono Gengenbachite KFe3(H2PO4)2(HPO4)4•6H2OorKFe3H8(PO4)6•6H2O P 63mc 6mm IMA2008-063 Pb[Zn0.25,[]0.75]Fe3H(AsO4)2(OH)6 C 2/c 2/m IMA2009-005 (Y,Ca,REE)5[(Si,P)O4]3F P 63/m 6/m 2/m 2/m IMA2009-016 Cu4H(AsO4)2(OH)3•H2O P1 1 Kerstenite? PbSeO4(?) P nma 2/m 2/m 2/m Krasnoselskite* CoWO4 P 2/c 2/m Laubmannite? Fe3Fe6(PO4)4(OH)12 Unk Ortho Oxiberaunite* (Fe,Mn)Fe5(PO4)4O(OH)4•6(H2O) Mono Parwanite (Na,K)(Mg,Ca)4Al8(PO4)8(CO3)(OH)7•30H2O P 2, Pm, P 2/m, P 21, Mono Pyrocoproite* (Mg(K,Na))2P2O7 Unk Mono Pyrophosphite* K2CaP2O7 P 21/n 2/m Zinclavendulan? NaCa(Zn,Cu)5(AsO4)4Cl•4-5(H2O) Unk Ortho
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 Barium-zinc-alumopharmacosiderite Information

Help on References: References: PHYS. PROP.(37th List of New Min.,Min. Mag.,1996) OPTIC PROP.(37th List of New Min.,Min. Mag.,19)
Help on See Also: See Also: Links to other databases for Barium-zinc-alumopharmacosiderite :
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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Dana No: Strunz No: 08.DK.10





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