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Allabogdanite

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Big Photo

Onello meteorite, Bol'shoy Dolguchan River, Onello River basin, Aldan shield, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia
© Pavel M. Kartashov

Show Allabogdanite Photos (2)



Formula:
(Fe,Ni)
 
2
P
System:OrthorhombicColour:Light straw-yellow
Lustre:MetallicHardness:5 - 6
Name:After Alla Bogdanova, Geological Institute, Kola Science Centre
of Russian Academy of Sciences.
This page provides mineralogical data about Allabogdanite.

Classification of Allabogdanite

IMA status:Approved 2000
Strunz 8th edition ID:1/A.11-15
Nickel-Strunz 10th (pending) edition ID:1.BD.15

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
B : Metallic Carbides, Silicides, Nitrides and Phosphides
D : Phosphides
Dana 7th edition ID:1.1.32.2
mindat.org URL:http://www.mindat.org/min-11008.html
Please feel free to link to this page.

Type Occurrence of Allabogdanite

Type Locality:Onello meteorite, Bol'shoy Dolguchan River, Onello River basin, Aldan shield, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia
General Appearance of Type Material:Lath-like crystals to 0.4x0.1x0.01mm
Year of Discovery:1997
Geological Setting of type material:In 'Plessite' - an intergrowth of Taenite and Kamacite
Associated Minerals at type locality:
TaeniteSchreibersiteNickelphosphideKamaciteGraphite
Awaruite

Occurrences of Allabogdanite

Geological Setting:Iron meteorites

Physical Properties of Allabogdanite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Light straw-yellow
Hardness (Mohs):5 - 6
Tenacity:Brittle
Cleavage:None Observed
Density (calculated):7.11 g/cm3

Crystallography of Allabogdanite

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:Pnma {P21/n 21/m 21/a}
Cell Parameters:a = 5.748Å, b = 3.548Å, c = 6.661Å
Ratio:a:b:c = 1.62 : 1 : 1.877
Unit Cell Volume:V 135.8 ų
Z:4
Morphology:{001} and probably {110} and {100}; flattened on {001}
Twinning:Gypsum-like possibly with twin-plane {110}
X-Ray Powder Diffraction:
d-spacingIntensity
2.238 (100)
210)(
2.120 (80)
2.073 (70)
1.884 (50)
212)(
1.843 (40)
1.788 (40)
1.774 (40)
1.758 (40)
1.346 (40)
313(
410)(
1.277 (40)

Optical Data of Allabogdanite

Type:Anisotropic
Anisotropism:Distinct, light to dark creamy
Reflectivity:
480nmR1=47.0%R2= 37.6%
540nmR1=48.2%R2=39.2%
580nmR1=49.6%R2=40.7%
660nmR1=52.3%R2= 44.3%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 52.3%.
R1 shown in black, R2 shown in red
Colour in reflected light:Creamy

Chemical Properties of Allabogdanite

Formula:
(Fe,Ni)
 
2
P
Essential elements:Fe, Ni, P
All elements listed in formula:Fe, Ni, P
Analytical Data:Means of nine sets of electron microprobe data
Ni 20.07%
Fe 57.7%
Co 1.4%
P 20.4%

Total 100.2 wt.%
Empirical Formula:
(Fe
 
1.50
Ni
 
0.51
Co
 
0.03
)
 
Σ2.04
P
 
0.96

Relationship of Allabogdanite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
1.BD.05Schreibersite
(Fe,Ni)
 
3
P
1.BD.05Nickelphosphide
(Ni,Fe)
 
3
P
1.BD.10Barringerite
(Fe,Ni)
 
2
P
1.BD.10Monipite
MoNiP
1.BD.15Florenskyite
FeTiP
1.BD.15Andreyivanovite
FeCrP
1.BD.20Melliniite
(Ni,Fe)
 
4
P

Other Names for Allabogdanite

Synonyms:
IMA2000-038
Other Languages:
German:Allabogdanit
Russian:Аллабогданит
Spanish:Allabogdanita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Allabogdanite

Reference List:

- +
Britvin, S.N., Rudashevskii, N.S., Krivovichev, S.V., Burns, P.C., and Polekhovsky, Y.S. (2002) Allabogdanite, (Fe,Ni)2P, a new mineral from the Onello meteorite: The occurrence and crystal structure. American Mineralogist: 87: 1245-1249.

Internet Links for Allabogdanite

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  • Raman and XRD data at RRUFF project
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  • Allabogdanite details from Handbook of Mineralogy (PDF) [Link dead]
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    • Localities for Allabogdanite

    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Russia
     
    • Eastern-Siberian Region
      • Saha Republic (Sakha Republic; Yakutia)
        • Aldan shield
          • Onello River basin
            • Bol'shoy Dolguchan River
    		Am. Min. 87:5-1245-1249
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