Switzerite Mineral Data + 
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- 40.3.5.1 Ludlamite (Fe,Mg,Mn)3(PO4)2·4(H2O) P 21/a 2/m
- 40.3.5.2 Metaswitzerite Mn3(PO4)2·4(H2O) P 2/a 2/m
- 40.3.5.3 Sterlinghillite Mn3(AsO4)2·3(H2O) Mono Mono
- 40.3.5.4 Switzerite (Mn,Fe)3(PO4)2·7(H2O) P 21/a 2/m
- VII/C.10-10 Ludlamite (Fe,Mg,Mn)3(PO4)2·4(H2O) P 21/a 2/m
- VII/C.10-20 Switzerite (Mn,Fe)3(PO4)2·7(H2O) P 21/a 2/m
- VII/C.10-30 Metaswitzerite Mn3(PO4)2·4(H2O) P 2/a 2/m
General Switzerite Information |
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 Chemical Formula: |
(Mn++,Fe++)3(PO4)2·7(H2O) | ||
| Composition: |
Molecular Weight = 481.55 gm | ||
| Manganese 25.67 % Mn 33.15 % MnO | |||
| Iron 8.70 % Fe 11.19 % FeO | |||
| Phosphorus 12.86 % P 29.48 % P2O5 | |||
| Hydrogen 2.93 % H 26.19 % H2O | |||
| Oxygen 49.84 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Mn2+2.25Fe2+0.75(PO4)2·7(H2O) | ||
| IMA Status: |
Approved IMA 1967 | ||
| Locality: |
Foote Mineral Co. mine in Kings Mountain, Cleveland County., North Carolina, USA. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for George Switzer, retired chairman of the Dept. of Mineral Sciences, Smithsonian | ||
| Synonym: |
ICSD 202111 | ||
| PDF 20-Mar | |||
Switzerite Image | |||
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Images:
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Switzerite Crystallography |
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| Axial Ratios: |
a:b:c =0.6477:1:0.8971 | ||
| Cell Dimensions: |
a = 8.528, b = 13.166, c = 11.812, Z = 4; beta = 110.05° V = 1,245.87 Den(Calc)= 2.57 | ||
| Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/a | ||
| X Ray Diffraction: |
By Intensity(I/Io): 11.12(1), 3.37(0.9), 6.81(0.6), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Switzerite |
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| Cleavage: |
[001] Perfect | ||
| Color: |
Brown, Pink. | ||
| Density: |
2.535 | ||
| Diaphaniety: |
Transparent to Translucent | ||
| Hardness: |
2 - Gypsum | ||
| Luster: |
Vitreous - Pearly | ||
| Streak: |
white | ||
Optical Properties of Switzerite |
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| Gladstone-Dale: |
CI meas= 0.017 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.031 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2223,KPDmeas= 0.2254,KC= 0.2293 |
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| Optical Data: |
Biaxial (-), a=1.56, b=1.574, g=1.58, bire=0.0200, 2V(Calc)=64, 2V(Meas)=70. | ||
Calculated Properties of Switzerite |
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| Electron Density: |
relectron=2.52 gm/cc |
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| Fermion Index |
Fermion Index = 0.00208 Boson Index = 0.99792 |
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| Photoelectric: |
PESwitzerite = 9.61 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Switzerite is Not Radioactive |
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Switzerite Classification |
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| Dana Class: |
40.3.5.4 (40)Hydrated Phosphates, etc | ||
| (40.3)where (A++)3 (XO4)2 · x(H2O) | |||
| (40.3.5)Dana Group | |||
| Strunz Class: |
VII/C.10-20 VII - Phosphates, Arsenates and Vanadates | ||
| VII/C - Water-bearing phosphates without unfamiliar anions. cations of medium and small size: Be and Mn, Fe, Cu, Zn, Mg | |||
| VII/C.10 - Ludlamite - Metaswitzerite series | |||
Other Switzerite Information |
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| References: |
PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Switzerite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - WWW-MINCRYST 14 -École des Mines de Paris Search for Switzerite using: Visit our Advertisers for Switzerite : Translate Switzerite Mineral Data : Ask about Switzerite here : Print or Cut-and-Paste your Switzerite Specimen Label here :
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