Schreibersite Mineral Data

General Schreibersite Information

Chemical Formula:

(Fe,Ni)3P

Composition:

Molecular Weight = 200.65 gm

Iron 62.63 % Fe

Nickel 21.94 % Ni

Phosphorus 15.44 % P

______

100.00 %

Empirical Formula:

Fe⁰⁺_2.25Ni_0.75P

Environment:

In nearly all iron meteorites, but lacking in those which are nickel deficient.

IMA Status:

Valid Species (Pre-IMA) 1847

Locality:

Common in iron meteorites, as Magura, Bohumilitz, Beaconsfield, Canyon Diablo, Coahuila, many others Link to MinDat.org Location Data.

Name Origin:

Named for Karl Franz Anton von Schreibers (1775-1852), of Vienna, Austria.

Name Pronunciation:

Schreibersite + Pronunciation

Synonym:

ICSD 14241

PDF 19-617

Rhabdite

Schreibersite Image

Images:

Schreibersite

Comments: Golden metallic schreibersite cleavage fragment from type IIB octahedrite meteorite.
Location: Sau Luiao de Moreira Meteorite, Ponte de Lima, Minho, Viana do Castelo, Portugal. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Images:

Allabogdanite Schreibersite

Comments: Relict grain of allabogdanite crystal (ABG) surrounded by schreibersite rim (SCHR) in plessite matrix (PL). Black phase is a secondary Fe-Ni-hydroxide. Backscattered electron image. (AmMin, 87:1249).
Location: Onello iron meteorite (high-Ni ataxite) Onello River basin, Aldan shield, Saha (Sakha) Republic (Yakutia), Eastern-Siberian Region, Russia. Scale: Scale bar 10 µ-m.
© American Mineralogist

Schreibersite Crystallography

Axial Ratios:

a:c = 1:0.49084

Cell Dimensions:

a = 9.013, c = 4.424, Z = 8; V = 359.38 Den(Calc)= 7.42

Crystal System:

Tetragonal - Disphenoidal H-M Symbol (4) Space Group: I 4

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

By Intensity(I/I_o): 2.19(1), 1.972(0.7), 2.1(0.7),

Physical Properties of Schreibersite

Cleavage:

{001} Perfect, {010} Indistinct, {110} Indistinct

Color:

Bronze, Brown, Brass yellow, Silver white.

Density:

7 - 7.8, Average = 7.4

Diaphaneity:

Opaque

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Hardness:

6.5-7 - Pyrite-Quartz

Luster:

Metallic

Streak:

dark gray

Calculated Properties of Schreibersite

Electron Density:

Bulk Density (Electron Density)=6.99 gm/cc
note: Specific Gravity of Schreibersite =7.42 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_{Schreibersite}= 28.90 barns/electron
U=PE_{Schreibersite} x rElectron Density= 201.97 barns/cc.

Radioactivity:

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

Schreibersite Classification

Dana Class:

01.01.21.02 (01)Native Elements

(01.01)with metallic elements other than the platinum group

(01.01.21)Barringerite Group phosphides

01.01.21.01 Barringerite (Fe,Ni)2P P 62m 6 m2

01.01.21.02 Schreibersite (Fe,Ni)3P I 4 4

01.01.21.03 Nickelphosphide! (Ni,Fe)3P I 4 4

01.01.21.04 Allabogdanite! (Fe,Ni)2P P nma 2/m 2/m 2/m

01.01.21.05 Melliniite! (Ni,Fe)4P P 2₁3 2 3

01.01.21.06 Monipite! MoNiP P 6 2m 6 m2

Strunz Class:

01.BD.05 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)

01.B - Metallic Carbides, Silicides, Nitrides and Phosphides

01.BD -Phosphides

01.BD.05 Schreibersite (Fe,Ni)3P I 4 4

01.BD.05 Nickelphosphide! (Ni,Fe)3P I 4 4

Other Schreibersite Information

References:

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

See Also:

Links to other databases for Schreibersite :
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 - WWW-MINCRYST

Search for Schreibersite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Schreibersite :

Ask about Schreibersite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

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

Schreibersite

(Fe,Ni)3P
Dana No: 01.01.21.02 Strunz No: 01.BD.05
Locality:

Notes:

Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.