Wairauite Mineral Data

General Wairauite Information

Chemical Formula:

CoFe

Composition:

Molecular Weight = 114.78 gm

Iron 48.66 % Fe

Cobalt 51.34 % Co

______

100.00 %

Empirical Formula:

CoFe⁰⁺

Environment:

Found in dominantly lizardite serpentine at the western contact of an ultramafic intrusion: thought to have been formed under low-sulfer reducing conditions during the serpentinizat ion process.

IMA Status:

Approved IMA 1964

Locality:

Red Hill, Warau Valley, South Island, New Zealand. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Name Pronunciation:

Wairauite + Pronunciation

Synonym:

ICSD 56273

PDF 44-1433

Wairauite Image

Images:

Wairauite

Comments: Octahedra of wairauite in serpentinite. AmMin v33:942.
Location: Red Hills serpentinites of the Wairau Valley, South Island, New Zealand. Scale: See Image.
© American Mineralogist

Wairauite Crystallography

Cell Dimensions:

a = 2.856, Z = 1; V = 23.30 Den(Calc)= 8.18

Crystal System:

Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: P m3m

Physical Properties of Wairauite

Color:

Steel gray.

Diaphaneity:

Opaque

Habit:

Euhedral Crystals - Occurs as well-formed crystals showing good external form.

Hardness:

5 - Apatite

Luster:

Metallic

Optical Properties of Wairauite

RL Color:

White.

Calculated Properties of Wairauite

Electron Density:

Bulk Density (Electron Density)=7.55 gm/cc
note: Specific Gravity of Wairauite =8.18 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_Wairauite= 33.34 barns/electron
U=PE_Wairauite x rElectron Density= 251.82 barns/cc.

Radioactivity:

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

Wairauite Classification

Dana Class:

01.01.11.06 (01)Native Elements

(01.01)with metallic elements other than the platinum group

(01.01.11)Iron-Nickel group

01.01.11.00 Iron! Fe I m3m 4/m 3 2/m

01.01.11.01 Kamacite? alpha-(Fe,Ni) F m3m 4/m 3 2/m

01.01.11.02 Taenite gamma-(Fe,Ni) F m3m 4/m 3 2/m

01.01.11.03 Tetrataenite FeNi P 4/mmm 4/m 2/m 2/m

01.01.11.04 Awaruite Ni2FetoNi3Fe P m3m 4/m 3 2/m

01.01.11.05 Nickel Ni F m3m 4/m 3 2/m

01.01.11.06 Wairauite CoFe P m3m 4/m 3 2/m

Strunz Class:

01.AE.15 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)

01.A - Metals and Intermetallic Alloys

01.AE -Iron-chromium family

01.AE.15 Chromferide Fe3Cr1-x(x=0,6) P m3m 4/m 3 2/m

01.AE.15 Ferchromide Cr3Fe1-x(x=0,6) P m3m 4/m 3 2/m

01.AE.15 Wairauite CoFe P m3m 4/m 3 2/m

Other Wairauite Information

References:

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

See Also:

Links to other databases for Wairauite :
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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Wairauite

CoFe
Dana No: 01.01.11.06 Strunz No: 01.AE.15
Locality:

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