Haapalaite Mineral Data

General Haapalaite Information

Chemical Formula:

2(Fe,Ni)S•1.6(Mg,Fe++)(OH)2

Composition:

Molecular Weight = 276.87 gm

Magnesium 12.29 % Mg

Iron 34.29 % Fe

Nickel 10.60 % Ni

Hydrogen 1.16 % H

Sulfur 23.16 % S

Oxygen 18.49 % O

______

100.00 %

Empirical Formula:

Fe²⁺_1.5Ni_0.5S₂Mg_1.4Fe²⁺_0.21.6(OH)₂

Environment:

As thin scales in the Kokka serpentine and in carbonate, rarely in chrysotile.

IMA Status:

Approved IMA 1973

Locality:

Kokka serpentinite, near Outokumpu, Finland. Link to MinDat.org Location Data.

Name Origin:

Named for Paavo Haapala (1906-), Finnish geologist.

Name Pronunciation:

Haapalaite + Pronunciation

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Haapalaite Crystallography

Axial Ratios:

a:c = 1:9.34615

Cell Dimensions:

a = 3.64, c = 34.02, Z = 3; V = 390.36 Den(Calc)= 3.53

Crystal System:

Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3m ?

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

By Intensity(I/I_o): 11.3(1), 5.67(0.9), 3.18(0.8),

Physical Properties of Haapalaite

Cleavage:

{???} Good

Color:

Bronze red.

Density:

3.576

Diaphaneity:

Opaque

Habit:

Scaly - Morphology like fish scales.

Habit:

Thin - Flat dimensioned crystals.

Hardness:

1 - Talc

Luster:

Metallic

Optical Properties of Haapalaite

RL Anisotrophism:

Very strong, bronze-red to grayish white.

RL Color:

Brown.

RL Pleochroism:

Distinct, light brown to grayish brown.

Calculated Properties of Haapalaite

Electron Density:

Bulk Density (Electron Density)=3.46 gm/cc
note: Specific Gravity of Haapalaite =3.53 gm/cc.

Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Photoelectric:

PE_Haapalaite= 15.87 barns/electron
U=PE_Haapalaite x rElectron Density= 54.97 barns/cc.

Radioactivity:

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

Haapalaite Classification

Dana Class:

02.14.03.01 (02)Sulfides - Including Selenides and Tellurides

(02.14)(Hydroxyl or Hydrated)

(02.14.03)Dana Group

02.14.03.01 Haapalaite 2(Fe,Ni)S•1.6(Mg,Fe)(OH)2 R 3m ? 3 2/m

02.14.03.02 Yushkinite V1-xS•n(Mg,Al)(OH)2 P 3m1 3m

Strunz Class:

02.FD.30 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.F - Sulfides of Arsenic, Alkalies; Sulfides with Halide, Oxide, Hydroxide, H2O

02.FD -With O, OH, H2O

02.FD.30 Haapalaite 2(Fe,Ni)S•1.6(Mg,Fe)(OH)2 R 3m ? 3 2/m

02.FD.30 Valleriite 4(Fe,Cu)S•3(Mg,Al)(OH)2 R 3m 3 2/m

02.FD.30 Yushkinite V1-xS•n(Mg,Al)(OH)2 P 3m1 3m

Other Haapalaite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Haapalaite :
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
15 - Scandinavian mineral gallery

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

Haapalaite

2(Fe,Ni)S•1.6(Mg,Fe++)(OH)2
Dana No: 02.14.03.01 Strunz No: 02.FD.30
Locality:

Notes: