Hisingerite Mineral Data

General Hisingerite Information

Chemical Formula:

Fe+++2Si2O5(OH)4•2(H2O)

Composition:

Molecular Weight = 351.92 gm

Iron 31.74 % Fe 45.38 % Fe₂O₃

Silicon 15.96 % Si 34.15 % SiO₂

Hydrogen 2.29 % H 20.48 % H₂O

Oxygen 50.01 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Fe³⁺₂Si₂O₅(OH)₄•2(H₂O)

Environment:

Secondary mineral formed from weathering or late-stage deuteric alteration of iron-bearing silicates or sulfides.

IMA Status:

Valid Species (Pre-IMA) 1828

Locality:

Riddarhyttan, Vastmanland, Sweden. Link to MinDat.org Location Data.

Name Origin:

Named for Wilhelm Hisinger (1766-1852), eminent Swedish chemist.

Name Pronunciation:

Hisingerite + Pronunciation

Synonym:

Canbyite

Scotiolite

Sturtite

Hisingerite Image

Images:

Hisingerite

Comments: Resinous reddish brown coatings of hisingerite on rock.
Location: Agnew Nickel Deposit, near Leinster, Western Australia, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Hisingerite Crystallography

Axial Ratios:

a:b:c =0.598:1:1.66

Cell Dimensions:

a = 5.4, b = 9.03, c = 14.99, Z = 4; beta = 98.32° V = 723.25 Den(Calc)= 3.23

Crystal System:

Monoclinic Space Group: Unk

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 1.72(1), 2.456(1), 4.23(1),

Physical Properties of Hisingerite

Cleavage:

None

Color:

Brownish black, Black.

Density:

2.43 - 2.67, Average = 2.54

Diaphaneity:

Subtransparent to opaque

Fracture:

Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).

Habit:

Acicular - Occurs as needle-like crystals.

Habit:

Compact - Occurs as a compact mass.

Habit:

Massive - Uniformly indistinguishable crystals forming large masses.

Hardness:

3 - Calcite

Luminescence:

Non-fluorescent.

Luster:

Greasy (Oily)

Streak:

yellowish brown

Optical Properties of Hisingerite

Gladstone-Dale:

CI meas= 0.001 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.211 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2237,KPDmeas= 0.2833,KC= 0.2836
Ncalc = 1.69 - 1.92

Optical Data:

Biaxial (-), a=1.715, g=1.73, bire=0.0150

Calculated Properties of Hisingerite

Electron Density:

Bulk Density (Electron Density)=2.55 gm/cc
note: Specific Gravity of Hisingerite =2.55 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_Hisingerite= 9.92 barns/electron
U=PE_Hisingerite x rElectron Density= 25.31 barns/cc.

Radioactivity:

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

Hisingerite Classification

Dana Class:

71.01.04.02 (71)Phyllosilicate Sheets of Six-Membered Rings

(71.01)with 1:1 layers

(71.01.04)Allophane group

71.01.04.01 Allophane Al2O3•(SiO2)1.3-2•((H2O))2.5-3 None

71.01.04.02 Hisingerite Fe2Si2O5(OH)4•2(H2O) Unk Mono

71.01.04.03 Imogolite Al2SiO3(OH)4 ? Mono

71.01.04.04 Neotocite (Mn,Fe)SiO3•(H2O)(?) None

71.01.04.05 Zinalsite! Zn2AlSi2O5(OH)4•2(H2O)(?) Mono

Strunz Class:

09.ED.10 09 - SILICATES (Germanates)

09.E - Phyllosilicates

09.ED -Phyllosilicates with kaolinite layers

09.ED.10 Endellite! Al2Si2O5(OH)4•2(H2O) Cc m

09.ED.10 Hisingerite Fe2Si2O5(OH)4•2(H2O) Unk Mono

09.ED.10 Halloysite Al2Si2O5(OH)4 Cc m

09.ED.10 Sturtite? (Fe3)(Mn2,Ca,Mg)Si4O10(OH)3•10(H2O) None

Other Hisingerite Information

References:

NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Hisingerite :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Athena
5 - EUROmin Project
6 - Ecole des Mines de Paris
7 - GeoScienceWorld
8 - Google Images
9 - Google Scholar
10 - Handbook of Mineralogy (MinSocAm)
11 - Handbook of Mineralogy (UofA)
12 - MinDAT
13 - Mineralienatlas (Deutsch)
14 - Online Mineral Museum
15 - QUT Mineral Atlas
16 - Ruff.Info

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Hisingerite

Fe+++2Si2O5(OH)4•2(H2O)
Dana No: 71.01.04.02 Strunz No: 09.ED.10
Locality:

Notes:

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