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Schafarzikite

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Krížnica Mine, Krížnica, Pernek, Malé Karpaty Mts, Bratislava Region, Slovakia
© Martin Števko

Show Schafarzikite Photos (3)
Formula:
Fe
2+
 
Sb
3+
2
O
 
4
System:TetragonalColour:Red-brown to red, black; ...
Hardness:3½
Name:Named after Professor Ferenc Schafarzik (1854-1927) Hungarian mineralogist and engineering geologist of Budapest, Hungary.


Trippkeite Group.

A secondary mineral occurring in the oxidation zones of antimony-bearing hydrothermal mineral deposits.

Classification of Schafarzikite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:4/B.06-20
Strunz 9th edition ID:4.JA.20
Nickel-Strunz 10th (pending) edition ID:4.JA.20

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
A : Arsenites, antimonites, bismuthites; without additional anions, without H2O
Dana 8th edition ID:45.1.6.1

45 : ACID AND NORMAL ANTIMONITES AND ARSENITES
1 : Miscellaneous
Hey's CIM Ref.:24.4.5

24 : Antimonates and Antimonites
4 : Antimonates and antimonites of Mn and Fe
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Type Occurrence of Schafarzikite

Type Locality:Krížnica Mine, Krížnica, Pernek, Malé Karpaty Mts, Bratislava Region, Slovakia
Place of Conservation of Type Material:University of Vienna, Vienna, Austria.
Year of Discovery:1921
Geological Setting of type material:Hydrothermal Sb mineralization, bound to black shales and phyllites in a zone of actinolitic rocks.
Associated Minerals at type locality:
ValentiniteStibniteSénarmontiteKermesiteCalcite

Occurrences of Schafarzikite

Geological Setting:In oxidized zones of antimony-bearing hydrothermal deposits.

Physical Properties of Schafarzikite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Red-brown to red, black; yellow in transitted light
Streak:Brown
Hardness (Mohs):3½
Hardness (Vickers):VHN10=251 - 278 kg/mm2
Hardness Data:Measured
Tenacity:Brittle
Cleavage:Distinct/Good
On {110}, perfect; on {100}, very good; on {001}, in traces.
Fracture:None observed
Density (measured):4.3 g/cm3
Density (calculated):5.24 g/cm3

Crystallography of Schafarzikite

Crystal System:Tetragonal
Class (H-M):4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:P42/mbc {P42/m 21/b 2/c}
Cell Parameters:a = 8.59(2) Å, c = 5.913(3) Å
Ratio:a:c = 1 : 0.688
Unit Cell Volume:V 437.8 ų
Z:4
Morphology:Crystals prismatic with {100} striated parallel to [001], exhibiting {100}, {110}, {111}, {132}, and {012}, as well as several additional forms.

Optical Data of Schafarzikite

Type:Uniaxial (+)
Pleochroism:Strong
Comments:E = Brownish yellow
O = Straw-yellow

Chemical Properties of Schafarzikite

Formula:
Fe
2+
 
Sb
3+
2
O
 
4
Essential elements:Fe, O, Sb
All elements listed in formula:Fe, O, Sb
Analytical Data:Results from electron microprobe analysis of material from the type locality
FeO    (19.38)
ZnO     (0.02)
PbO     (0.02)
Sb2O3  (80.36)
As2O3   (0.55)
Bi2O3   (0.16)
SO2     (0.04)

total  100.53 wt.-%
Empirical Formula:
Fe
 
0.97
(Sb
 
1.99
As
 
0.02
)
 
=2.01
O
 
4

Relationship of Schafarzikite to other Species

Common Associates:
ValentiniteStibniteSénarmontiteQuartzKermesite
GypsumBerthieriteAnkerite
Related Minerals - Nickel-Strunz Grouping):

- +
4.JA.05Leiteite
Zn[As
 
2
O
 
4
]
4.JA.10Reinerite
Zn
 
3
(AsO
 
3
)
 
2
4.JA.15Karibibite
Fe
 
2
As
 
4
O
 
9
4.JA.20Kusachiite
CuBi
 
2
O
 
4
4.JA.20Trippkeite
Cu[As
 
2
O
 
4
]
4.JA.25Apuanite
Fe
2+
 
Fe
3+
4
Sb
3+
4
O
 
12
S
4.JA.30Versiliaite
Fe
 
2
Fe
 
4
Sb
 
6
O
 
16
S
4.JA.35Schneiderhöhnite
Fe
2+
 
Fe
3+
3
[As
 
5
O
 
13
]
4.JA.40Zimbabweite
(Na,K)
 
2
PbAs
 
4
(Ta,Nb,Ti)
 
4
O
 
18
4.JA.45Ludlockite
PbFe
3+
4
As
3+
10
O
 
22
4.JA.50Paulmooreite
Pb
 
2
[As
 
2
O
 
5
]
4.JA.55Stibivanite
Sb
 
2
VO
 
5
4.JA.60Chadwickite
(UO
 
2
)[HAsO
 
3
]
Related Minerals - Hey's Index Grouping:

- +
24.4.1Ingersonite
Ca
 
3
MnSb
 
4
O
 
14
24.4.2Manganostibite
(Mn,Fe)
 
7
SbAsO
 
12
24.4.3Tripuhyite
Fe
3+
 
Sb
5+
 
O
 
4

Other Names for Schafarzikite

Other Languages:
German:Schafarzikit
Russian:Шафарцикит
Spanish:Schafarzikita

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 Schafarzikite

Reference List:Krenner (1921) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 56: 198.

Tokody (1925) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 62: 123.

Hueber (1932) Centralblatt für Mineralogie, Geologie und Paleontologie, Stuttgart: 337.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 1035-1036.

Zemann, J. (1951) Formel und Kristallstruktur des Schafarzikits. Tschermaks Mineral. Petrog. Mitt., 2, 166–175 (in German).

American Mineralogist (1952): 37: 136.

Fischer, R. and F. Pertlik (1975) Verfeinerung der Kristallstruktur des Schafarzikits, FeSb2O4. Tschermaks Mineralogische und Petrographische Mitteilungen: 22: 236–241 (in German with English abstract).

Mellini, M., M. Amouric, A. Baronnet, and G. Mercuriot (1981) Microstructures and nonstoichiometry in schafarzikite- like minerals. American Mineralogist: 66: 1073-1079.

Tschermaks Mineralogische und Petrographische Mitteilungen: 22: 236-241.

Sejkora, J., Ozdín, D., Vitálos,, J., TuĿek, P., Čejka, J., ĎuĿa, R. (2007): Schafarzikite from the type locality Pernek (Malé Karpaty Mountains, Slovak Republic) revisited. European Journal of Mineralogy, 19, 419-427.

Internet Links for Schafarzikite

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    Localities for Schafarzikite

    Hide Locality List
    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    (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.
    Bolivia
     
    • Potosí Department
      • Antonio Quijarro Province
    		Jan Bernard & Jaroslav Hyrsl (2004) Minerals and their Localities.; Econ Geol (1997) 92:623-632; Dill, H.G. (1998): Mineralium Deposita 33, 359-378.
    Canada
     
    • Québec
      • Centre-du-Québec
        • Arthabaska RCM
          • Saints-Martyrs-Canadiens
    		[MinRec 1996]
    Italy
     
    • Lombardy
      • Sondrio Province
        • Sondalo
    		Rivista Mineralogica Italiana(4): 255-256
    • Tuscany
      • Lucca Province
        • Apuan Alps
          • Stazzema
            • Ponte Stazzemese
    		Orlandi P., Dini A., 2004. Die Mineralien der Buca della Vena-Mine, Apuaner Berge, Toskana (Italien). Lapis, 1: 11-24.
    Luxembourg
     
    • Goesdorf commune
      • Goesdorf
    		[Filella M., Philippo S., Belzile N., Chen Y. and Quentel F. (2009) Natural attenuation processes applying to antimony: A study in the abandoned antimony mine in Goesdorf, Luxembourg - Science of the total environment (in press)]
    Poland
     
    • Lower Silesia (Dolnośląskie)
      • Kłodzko District
        • Nowa Ruda
          • Przygórze
    		Coppola, V., Boni, M., Gilg, A., and Strzelska-Smakowska, B. (2009): Mineralium Deposita 44, 559-580.
    • Małopolskie
      • Olkusz District
        • Olkusz
    		Coppola, V., Boni, M., Gilg, A., and Strzelska-Smakowska, B. (2009): Mineralium Deposita 44, 559-580.
    Slovakia
     
    • Bratislava Region
      • Malé Karpaty Mts
        • Pernek
          • Krížnica
    		Sejkora J., Ozdín D., Vitáloš J., Tuček P., Čejka J., Ďuďa R., 2007: Schafarzikite from the type locality Pernek (Malé Karpaty Mountains, Slovak Republic) revisited. European Journal of Mineralogy, 19, 3, 419-427.
        • Pezinok
    		[MinRec 31:153-162]
    Thailand
     
    • Phrae Province
    		Dill, H.G., Melcher, F., and Botz, R. (2008): Ore Geology Reviews 34, 242-262.
    USA
     
    • Maine
      • Aroostook Co.
        • Linneus
    		King & Foord, 1994. Mineralogy of Maine, V.1.
    Mineral and/or Locality
    Google
     
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