Schafarzikite Mineral Data

Schafarzikite Mineral Data +

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General Schafarzikite Information

Chemical Formula:

Fe++Sb+++2O4

Composition:

Molecular Weight = 363.34 gm

Iron 15.37 % Fe 19.77 % FeO

Antimony 67.02 % Sb 80.23 % Sb₂O₃

Oxygen 17.61 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Fe²⁺Sb₂O₄

IMA Status:

Valid Species (Pre-IMA) 1921

Locality:

Link to MinDat.org Location Data.

Synonym:

ICSD 4459

PDF 25-1406

Schafarzikite Image

Images:

Schafarzikite

Comments: Dull black irregular schafarzikite masses in white marble.
Location: Bucca della Vena Mine, Valdi Castello, Carducci, Tuscany, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Schafarzikite Crystallography

Axial Ratios:

a:c = 1:0.68917

Cell Dimensions:

a = 8.59, c = 5.92, Z = 4; V = 436.83 Den(Calc)= 5.52

Crystal System:

Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: P 4₁/mbc

Forms:

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Forms: [ 1 3 2] [ 0 1 2] [ 1 1 0] [ 1 1 1] [ 1 0 0]

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Crystal Structure:

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Zemann J , Tschermaks Mineralogische und Petrographische Mitteilungen , 2 (1951) p.166-175, Formel und kristallstruktur des schafarzikits, Locality: Pernek, Slovakia - 30 km north of Bratislava

View Additional jPOWD Structure files for Schafarzikite
[1]

Physical Properties of Schafarzikite

Cleavage:

[110] Perfect, [200] Good

Color:

Red, Reddish brown, Yellow.

Density:

4.3

Diaphaniety:

Opaque

Hardness:

3.5 - Copper Penny

Luster:

Metallic

Streak:

yellowish brown

Optical Properties of Schafarzikite

Optical Data:

NCalc= 2.1 - from Gladstone-Dale relationship (KC = 0.2) where Ncalc=Dcalc*KC+1
NCalc= 1.86 - from Gladstone-Dale relationship (KC = 0.2) where Ncalc=Dmeas*KC+1

Calculated Properties of Schafarzikite

Electron Density:

r_electron=4.86 gm/cc
note: r_{Schafarzikite}=5.52 gm/cc.

Fermion Index

Fermion Index = 0.00334
Boson Index = 0.99666

Photoelectric:

PE_{Schafarzikite}= 228.84 barns/electron
U=PE_{Schafarzikite} x r_electron=1,112.49 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Schafarzikite is Not Radioactive

Schafarzikite Classification

Dana Class:

45.1.6.1 (45)Acid and normal Antimonites, Arsenites and Phosphites

(45.1)with miscellaneous formulae

(45.1.6)Dana Group

45.1.6.1 Schafarzikite FeSb2O4 P 4₁/mbc 4/m 2/m 2/m

Strunz Class:

IV/B.06-20 IV - Oxides

IV/B - Oxides with metal : oxygen = 3:4 (spinel type M3O4 and related)

IV/B.06 - Trippkeite - Minium series

IV/B.06-10 Trippkeite CuAs2O4 P 4₁/mbc 4/m 2/m 2/m

IV/B.06-15 Kusachiite CuBi2O4 P 4/ncc 4/m 2/m 2/m

IV/B.06-20 Schafarzikite FeSb2O4 P 4₁/mbc 4/m 2/m 2/m

IV/B.06-30 Versiliaite Fe4Fe8Sb12O23S2 Pbam ? 2/m 2/m 2/m

IV/B.06-40 Apuanite FeFe4Sb4O12S P 4₁/mbc 4/m 2/m 2/m

IV/B.06-50 Minium Pb2PbO4 P 4₁/mbc 4/m 2/m 2/m

Other Schafarzikite Information

References:

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

See Also:

Links to other databases for Schafarzikite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - WWW-MINCRYST 14 -École des Mines de Paris

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Schafarzikite

Fe++Sb+++2O4
Dana No: 45.1.6.1 Strunz No: IV/B.06-20
Locality:

Notes: