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Ferrisymplesite Mineral Data
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General Ferrisymplesite Information
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 Chemical Formula: |
Fe+++3(AsO4)2(OH)3•5(H2O) |
| Composition: |
Molecular Weight = 586.48 gm |
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Iron 28.57 % Fe 40.84 % Fe2O3 |
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Arsenic 25.55 % As 39.19 % As2O5 |
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Hydrogen 2.23 % H 19.97 % H2O |
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Oxygen 43.65 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Fe3+3(AsO4)2(OH)3•5(H2O) |
| Environment: |
In the oxidized zone of a Co�Ni sulfide deposit. |
| IMA Status: |
Valid Species (Pre-IMA) 1924 |
| Locality: |
Hudson Bay mine, Timiskaming district, Cobalt, Ontario, Canada. Link to MinDat.org Location Data. |
| Name Origin: |
Named for its ferric iron content and supposed relation to symplesite. |
| Name Pronunciation: |
Ferrisymplesite + Pronunciation  |
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Ferrisymplesite Crystallography
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| Crystal System: |
Amorphous- No Crystals |
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Physical Properties of Ferrisymplesite
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| Color: |
Yellow brown, Resin brown. |
| Density: |
2.88 |
| Diaphaneity: |
Transparent to Translucent |
| Habit: |
Fibrous - Crystals made up of fibers. |
| Hardness: |
2.5 - Finger Nail |
| Luminescence: |
Non-fluorescent. |
| Luster: |
Resinous |
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Optical Properties of Ferrisymplesite
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| Gladstone-Dale: |
CI meas= 0.105 (Poor) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.2326,KC= 0.26
Ncalc = 1.75 |
| Optical Data: |
Isotropic, n=1.67. |
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Calculated Properties of Ferrisymplesite
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| Electron Density: |
Bulk Density (Electron Density)=2.80 gm/cc
note: Specific Gravity of Ferrisymplesite =2.88 gm/cc.
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| Fermion Index: |
Fermion Index = 0.0062691375
Boson Index = 0.9937308625 |
| Photoelectric: |
PEFerrisymplesite = 25.65 barns/electron
U=PEFerrisymplesite x rElectron Density= 71.79 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ferrisymplesite is Not Radioactive |
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Ferrisymplesite Classification
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| Dana Class: |
42.10.01.01 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen |
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(42.10)where (AB)3 (XO4)2 Zq � x(H2O) |
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(42.10.01)Ferrisymplesite Group |
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42.10.01.01 Ferrisymplesite Fe3(AsO4)2(OH)3•5(H2O) None |
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42.10.01.02 Santabarbaraite! Fe3(PO4)2(OH)3•5(H2O) None |
| Strunz Class: |
08.CE.40 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.C - Phosphates without Additional Anions, with H2O |
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08.CE -With only medium-sized cations, RO4:H2O � 1:2.5 |
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08.CE.40 Arupite (Ni,Fe)3(PO4)2•8(H2O) I2/m 2/m |
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08.CE.40 Annabergite Ni3(AsO4)2•8(H2O) I2/m 2/m |
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08.CE.40 Baricite (Mg,Fe)3(PO4)2•8(H2O) C 2/m 2/m |
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08.CE.40 Erythrite Co3(AsO4)2•8(H2O) I2/m 2/m |
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08.CE.40 Ferrisymplesite Fe3(AsO4)2(OH)3•5(H2O) None |
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08.CE.40 Hornesite Mg3(AsO4)2•8(H2O) I2/m 2/m |
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08.CE.40 Kottigite Zn3(AsO4)2•8(H2O) C 2/m 2/m |
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08.CE.40 Manganohornesite (Mn,Mg)3(AsO4)2•8(H2O) P 21/c 2/m |
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08.CE.40 Parasymplesite Fe3(AsO4)2•8(H2O) C 2/m 2/m |
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08.CE.40 Vivianite Fe3(PO4)2•8(H2O) C 2/m 2/m |
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08.CE.40 Pakhomovskyite! Co3(PO4)2•8(H2O) C 2/m 2/m |
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Other Ferrisymplesite Information
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| References: |
NAME( AntBidBlaNic4) PHYS. PROP.(Dana) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
| See Also: |
Links to other databases for Ferrisymplesite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
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Ferrisymplesite
Fe+++3(AsO4)2(OH)3•5(H2O)
Dana No: 42.10.01.01 Strunz No: 08.CE.40
Locality:
Notes:
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