General Bariopharmacosiderite Information Chemical Formula: |
BaFe+++4(AsO4)3(OH)5•5(H2O) |
Composition: |
Molecular Weight = 952.59 gm |
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Barium 14.42 % Ba 16.10 % BaO |
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Iron 23.45 % Fe 33.53 % Fe2O3 |
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Arsenic 23.60 % As 36.19 % As2O5 |
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Hydrogen 1.59 % H 14.18 % H2O |
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Oxygen 36.95 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
BaFe3+4(AsO4)3(OH)5•5(H2O) |
IMA Status: |
Approved IMA 1966 |
Locality: |
Link to MinDat.org Location Data. |
Name Origin: |
Named as the barium analog of pharmacosiderite. |
Synonym: |
Barium-pharmacosiderite - Renamed Bariopharmacosiderite by Mineralogical Record, v39 (2008), p131 |
| | Bariopharmacosiderite Image
Images:
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Bariopharmacosiderite Crystallography Axial Ratios: |
a:c = 1:1.01274 |
Cell Dimensions: |
a = 15.85, c = 16.052, Z = 8; V = 4,032.62 Den(Calc)= 3.14 |
Crystal System: |
Tetragonal - ScalenohedralH-M Symbol (4 2m) Space Group: I 42m |
X Ray Diffraction: |
By Intensity(I/Io): 3.962(1), 3.24(0.75), 4.017(0.75), |
| Physical Properties of Bariopharmacosiderite Color: |
Brown. |
Diaphaneity: |
Transparent to Translucent |
Hardness: |
3 - Calcite |
Luster: |
Vitreous (Glassy) |
| Optical Properties of Bariopharmacosiderite Gladstone-Dale: |
CI calc= 0.221 (Poor) - where the CI = (1-KPDcalc/KC) |
KPDcalc= 0.1815,KC= 0.2331 Ncalc = 1.73 Optical Data: |
Uniaxial (+/-), a=1.57, b=1.57, bire=0.0000. |
| Calculated Properties of Bariopharmacosiderite Electron Density: |
Bulk Density (Electron Density)=2.97 gm/cc |
note: Specific Gravity of Bariopharmacosiderite =3.14 gm/cc. Fermion Index: |
Fermion Index = 0.03 |
Boson Index = 0.97 Photoelectric: |
PEBariopharmacosiderite = 84.60 barns/electron |
U=PEBariopharmacosiderite x rElectron Density= 250.99 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Bariopharmacosiderite is Not Radioactive | Bariopharmacosiderite Classification Dana Class: |
42.08.01.03 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen |
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(42.08)where (AB)7 (XO4)4 Zq · x(H2O) |
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(42.08.01)Pharmacosiderite Group |
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Strunz Class: |
08.DK.10 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.D - Phosphates, etc |
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08.DK -With large and medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1 |
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| Other Bariopharmacosiderite Information References: |
PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
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 Search for Bariopharmacosiderite using: Visit our Advertisers for Bariopharmacosiderite : A Bijoux Google Search for BariopharmacosideriteAdam's Minerals Google Search for Bariopharmacosiderite Cape Minerals Google Search for Bariopharmacosiderite Dakota Matrix Minerals Google Search for Bariopharmacosiderite Excalibur Mineral Corp. Google Search for Bariopharmacosiderite Exceptional Minerals Google Search for Bariopharmacosiderite John Betts Fine Minerals Search for Bariopharmacosiderite McDougall Minerals Google Search for Bariopharmacosiderite Mineral News Website Link Rock and Mineral Shows Google Search for Bariopharmacosiderite Weinrich Minerals, Inc. Google Search for Bariopharmacosiderite Ask about Bariopharmacosiderite here : Print or Cut-and-Paste your Bariopharmacosiderite Specimen Label here :
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