Ferrisymplesite Mineral Data

General Ferrisymplesite Information

Chemical Formula:

Fe+++3(AsO4)2(OH)3•5(H2O)

Composition:

Molecular Weight = 586.48 gm

Iron 28.57 % Fe 40.84 % Fe₂O₃

Arsenic 25.55 % As 39.19 % As₂O₅

Hydrogen 2.23 % H 19.97 % H₂O

Oxygen 43.65 % O

______ ______

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

Crystal System:

Amorphous- No Crystals

Physical Properties of Ferrisymplesite

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

Optical Properties of Ferrisymplesite

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.

Calculated Properties of Ferrisymplesite

Electron Density:

Bulk Density (Electron Density)=2.80 gm/cc
note: Specific Gravity of Ferrisymplesite =2.88 gm/cc.

Fermion Index:

Fermion Index = 0.0062691375
Boson Index = 0.9937308625

Photoelectric:

PE_{Ferrisymplesite}= 25.65 barns/electron
U=PE_{Ferrisymplesite} x rElectron Density= 71.79 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ferrisymplesite is Not Radioactive

Ferrisymplesite Classification

Dana Class:

42.10.01.01 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen

(42.10)where (AB)3 (XO4)2 Zq · x(H2O)

(42.10.01)Ferrisymplesite Group

42.10.01.01 Ferrisymplesite Fe3(AsO4)2(OH)3•5(H2O) None

42.10.01.02 Santabarbaraite! Fe3(PO4)2(OH)3•5(H2O) None

Strunz Class:

08.CE.40 08 - PHOSPHATES, ARSENATES, VANADATES

08.C - Phosphates without Additional Anions, with H2O

08.CE -With only medium-sized cations, RO4:H2O £ 1:2.5

08.CE.40 Arupite (Ni,Fe)3(PO4)2•8(H2O) I2/m 2/m

08.CE.40 Annabergite Ni3(AsO4)2•8(H2O) I2/m 2/m

08.CE.40 Baricite (Mg,Fe)3(PO4)2•8(H2O) C 2/m 2/m

08.CE.40 Erythrite Co3(AsO4)2•8(H2O) I2/m 2/m

08.CE.40 Ferrisymplesite Fe3(AsO4)2(OH)3•5(H2O) None

08.CE.40 Hornesite Mg3(AsO4)2•8(H2O) I2/m 2/m

08.CE.40 Kottigite Zn3(AsO4)2•8(H2O) C 2/m 2/m

08.CE.40 Manganohornesite (Mn,Mg)3(AsO4)2•8(H2O) P 2₁/c 2/m

08.CE.40 Parasymplesite Fe3(AsO4)2•8(H2O) C 2/m 2/m

08.CE.40 Vivianite Fe3(PO4)2•8(H2O) C 2/m 2/m

08.CE.40 Pakhomovskyite! Co3(PO4)2•8(H2O) C 2/m 2/m

Other Ferrisymplesite Information

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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Print or Cut-and-Paste your Ferrisymplesite Specimen Label here :

Ferrisymplesite

Fe+++3(AsO4)2(OH)3•5(H2O)
Dana No: 42.10.01.01 Strunz No: 08.CE.40
Locality:

Notes: