Awaruite Mineral Data

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General Awaruite Information

Chemical Formula:

Ni2Fe to Ni3Fe

Composition:

Molecular Weight = 202.57 gm

Iron 27.57 % Fe

Nickel 72.43 % Ni

______

100.00 %

Empirical Formula:

Ni_2.5Fe⁰⁺

Environment:

In river placers, from serpentinized peridotites; in meteorites.

IMA Status:

Valid Species (Pre-IMA) 1885

Locality:

From the Red Hills and the Gorge River draining them, near Awarua Bay, south Westland, New Zealand. At Coolac, New South Wales, and in the Lord Brassey mine, Tasmania, Australia. Link to MinDat.org Location Data.

Name Origin:

For the locality near Awarua Bay, New Zealand.

Name Pronunciation:

Awaruite

Synonym:

Bobrovskite

Josephinite

Souesite

Awaruite Image

Images:

Awaruite

Comments: Massive awaruite.
Location: Heazlewood River, Tasmania, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Awaruite Crystallography

Cell Dimensions:

a = 3.59, Z = 1; V = 46.27 Den(Calc)= 7.27

Crystal System:

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

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

By Intensity(I/I_o): 2.06(1), 1.78(0.3), 1.26(0.2),

Crystal Structure:

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Williams K L , American Mineralogist , 45 (1960) p.450-453, An association of awaruite with heazlewoodite, Locality: Lord Brassey mine, Heazlewood, Tasmania

View Additional jPOWD Structure files for Awaruite
[1] [2]

Physical Properties of Awaruite

Cleavage:

None

Color:

Gray white, Silver white, Tin white.

Density:

Diaphaneity:

Opaque

Fracture:

Flexible - Flexible fragments.

Hardness:

5 - Apatite

Luster:

Metallic

Streak:

light gray

Optical Properties of Awaruite

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Awaruite in Air**
λ	R	∑ R(λ)
400 nm	60.40
420 nm	61.30
440 nm	62.20
460 nm	62.30
480 nm	63.40
500 nm	63.80
520 nm	64.00
540 nm	64.20
560 nm	64.40
580 nm	64.80
600 nm	65.20
620 nm	65.70
640 nm	66.20
660 nm	66.70
680 nm	67.30
700 nm	68.00

**Calculated Relative Intensity Colors of Awaruite in Air**
Relative Intensity	0%	20%	40%	60%	80%	100%	120%	140%	150%
R

Calculated Properties of Awaruite

Electron Density:

Bulk Density (Electron Density)=6.89 gm/cc
note: Specific Gravity of Awaruite =7.27 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_Awaruite= 37.95 barns/electron
U=PE_Awaruite x rElectron Density= 261.52 barns/cc.

Radioactivity:

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

Awaruite Classification

Dana Class:

01.01.11.04 (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.20 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.20 Awaruite Ni2FetoNi3Fe P m3m 4/m 3 2/m

Other Awaruite Information

References:

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

See Also:

Links to other databases for Awaruite :
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 - HyperPhysics
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info

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Ask about Awaruite here :
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Print or Cut-and-Paste your Awaruite Specimen Label here :

Awaruite

Ni2Fe to Ni3Fe
Dana No: 01.01.11.04 Strunz No: 01.AE.20
Locality:

Notes: