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Slavíkite

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Vilmos Mine, Rudabánya, Rudabányai Mts., Borsod-Abaúj-Zemplén Co., Hungary
© Tamás Ungvári 2005

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Formula:
NaMg
 
2
Fe
 
5
(SO
 
4
)
 
7
(OH)
 
6
·33H
 
2
O
System:TrigonalColour:Pale yellow, pale ...
Hardness:3½
Name:Named after Frantisek Slavik (1865-1957) Professor of Mineralogy, Charles University, Prague.
This page provides mineralogical data about Slavíkite.

Classification of Slavíkite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:6/D.14-40
Nickel-Strunz 10th (pending) edition ID:7.DF.30

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
F : With large and medium-sized cations
Dana 8th edition ID:31.9.13.1

31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
9 : (AB)(XO4)Zq·xH2O
Hey's CIM Ref.:25.11.21

25 : Sulphates
11 : Sulphates of Fe and other metals
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Type Occurrence of Slavíkite

Type Locality:Valachov Hill, Skřivaň, Central Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic
Place of Conservation of Type Material:Charles University, Prague Czech Republic 8877
Year of Discovery:1926
Geological Setting of type material:Weathering pyritic shales
Associated Minerals at type locality:
PickeringiteHalotrichiteGypsum

Occurrences of Slavíkite

Geological Setting:Oxidation product of pyrite in shales and slate.

Physical Properties of Slavíkite

Lustre:Vitreous, Dull
Diaphaneity (Transparency):Transparent
Colour:Pale yellow, pale yellow-green
Hardness (Mohs):3½
Parting:Parting on {0001}
Density (measured):1.905 - 1.99 g/cm3
Comment:Values measured on Bohemian and Argentinian materials, respectively.

Crystallography of Slavíkite

Crystal System:Trigonal
Class (H-M):3 - Rhombohedral
Space Group:R3
Cell Parameters:a = 12.2Å, b = 12.2Å, c = 35.13Å
Ratio:a:b:c = 1 : 1 : 2.88
Unit Cell Volume:V 4,528.23 ų (Calculated from Unit Cell)
Z:3
Morphology:Crystals to 0.3mm scaly; tabular {0001} with prominent {10_11}; incrustations, efforvescences, fine granular, massive.

Optical Data of Slavíkite

Type:Uniaxial (-)
RI values: nω = 1.530 - 1.537 nε = 1.494 - 1.506
Maximum Birefringence:δ = 0.036

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low
Pleochroism:Visible
Comments:Dichroic:

O = Lemon-yellow
E = Nearly colorless

Chemical Properties of Slavíkite

Formula:
NaMg
 
2
Fe
 
5
(SO
 
4
)
 
7
(OH)
 
6
·33H
 
2
O
Essential elements:Fe, H, Mg, Na, O, S
All elements listed in formula:Fe, H, Mg, Na, O, S
Empirical Formula:
NaMg
 
2
Fe
3+
5
(SO
 
4
)
 
7
(OH)
 
6
·33H
 
2
O

Relationship of Slavíkite to other Species

Related Minerals - Nickel-Strunz Grouping):
7.DF.05Uklonskovite
NaMg[F|SO
 
4
] · 2H
 
2
O
7.DF.10Kainite
KMg[Cl|SO
 
4
] · 3H
 
2
O
7.DF.15Natrochalcite
NaCu
 
2
[OH|(SO
 
4
)
 
2
] · 2H
 
2
O
7.DF.20Metasideronatrite
Na
 
4
Fe
 
2
(SO
 
4
)
 
4
(OH)
 
2
·2H
 
2
O
7.DF.20Sideronatrite
Na
 
2
Fe(SO
 
4
)
 
2
OH·3H
 
2
O
7.DF.25Despujolsite
Ca
 
3
Mn
4+
 
[(OH)
 
6
|(SO
 
4
)
 
2
] · 3H
 
2
O
7.DF.25Fleischerite
Pb
 
3
Ge[(OH)
 
6
|(SO
 
4
)
 
2
] · 3H
 
2
O
7.DF.25Schaurteite
Ca
 
3
Ge[(OH)
 
6
|(SO
 
4
)
 
2
] · 4H
 
2
O
7.DF.25Mallestigite
Pb
 
3
Sb
5+
 
[(OH)
 
6
|AsO
 
4
|SO
 
4
] · 3H
 
2
O
7.DF.35Metavoltine
Na
 
6
K
 
2
FeFe
 
6
(SO
 
4
)
 
12
O
 
2
·18H
 
2
O
7.DF.40Lannonite
HCa
 
4
Mg
 
2
Al
 
4
(SO
 
4
)
 
8
F
 
9
·32H
 
2
O
7.DF.40Vlodavetsite
AlCa
 
2
[F
 
2
|Cl|(SO
 
4
)
 
2
] · 4H
 
2
O
7.DF.45Peretaite
Ca(SbO)
 
4
[(OH)|SO
 
4
]
 
2
 · 2H
 
2
O
7.DF.50Gordaite
NaZn[(OH)
 
6
|SO
 
4
|Cl] · 6H
 
2
O
7.DF.55Clairite
(NH
 
4
)
 
2
Fe
 
3
(SO
 
4
)
 
4
(OH)
 
3
·3H
 
2
O
7.DF.60Arzrunite
near Cu
 
4
Pb
 
2
SO
 
4
Cl
 
6
(OH)
 
4
·2H
 
2
O
7.DF.65Elyite
Pb
 
4
Cu(SO
 
4
)O
 
2
(OH)
 
4
·H
 
2
O
7.DF.70Yecoraite
Fe
3+
3
(BiO)
 
5
(Te
4+
 
O
 
3
)(Te
6+
 
O
 
6
)
 
2
 · 9H
 
2
O
7.DF.75Riomarinaite
Bi(OH)(SO
 
4
) * H
 
2
O
Related Minerals - Hey's Index Grouping:
25.11.1Natrojarosite
NaFe
 
3
[(OH)
 
3
|SO
 
4
]
 
2
25.11.2Sideronatrite
Na
 
2
Fe(SO
 
4
)
 
2
OH·3H
 
2
O
25.11.3Metasideronatrite
Na
 
4
Fe
 
2
(SO
 
4
)
 
4
(OH)
 
2
·2H
 
2
O
25.11.4Ferrinatrite
Na
 
3
Fe(SO
 
4
)
 
3
·3H
 
2
O
25.11.5Amarillite
NaFe(SO
 
4
)
 
2
·6H
 
2
O
25.11.6Yavapaiite
KFe(SO
 
4
)
 
2
25.11.7Krausite
KFe(SO
 
4
)
 
2
·H
 
2
O
25.11.8Goldichite
KFe(SO
 
4
)
 
2
·4H
 
2
O
25.11.9Jarosite
KFe
3+
 
 
3
[(OH)
 
3
|SO
 
4
]
 
2
25.11.10Voltaite
K
 
2
Fe
2+
5
Fe
3+
3
Al[SO
 
4
]
 
12
 · 18H
 
2
O
25.11.11Ungemachite
K
 
3
Na
 
8
Fe(SO
 
4
)
 
6
(NO
 
3
)
 
2
·6H
 
2
O
25.11.12Metavoltine
Na
 
6
K
 
2
FeFe
 
6
(SO
 
4
)
 
12
O
 
2
·18H
 
2
O
25.11.13Sabieite
NH
 
4
Fe(SO
 
4
)
 
2
25.11.14Ammoniojarosite
(NH
 
4
)Fe
3+
3
[(OH)
 
3
|SO
 
4
]
 
2
25.11.15Clairite
(NH
 
4
)
 
2
Fe
 
3
(SO
 
4
)
 
4
(OH)
 
3
·3H
 
2
O
25.11.16Mohrite
(NH
 
4
)
 
2
Fe(SO
 
4
)
 
2
·6H
 
2
O
25.11.17Lonecreekite
(NH
 
4
)Fe
3+
 
[SO
 
4
]
 
2
 · 12H
 
2
O
25.11.18Godovikovite
NH
 
4
(Al,Fe)(SO
 
4
)
 
2
25.11.19Botryogen
MgFe
3+
 
[OH|(SO
 
4
)
 
2
] · 7H
 
2
O
25.11.23Sturmanite
Ca
 
6
(Fe
3+
 
,Al,Mn
3+
 
)
 
2
[(OH)
 
12
|B(OH)
 
4
|(SO
 
4
)
 
2
] · 25H
 
2
O
25.11.24Millosevichite
(Al,Fe)
 
2
(SO
 
4
)
 
3
25.11.25Aluminocopiapite
Al
 
2/3
Fe
3+
4
[OH|(SO
 
4
)
 
3
]
 
2
 · 20H
 
2
O
25.11.26Halotrichite
FeAl
 
2
(SO
 
4
)
 
4
·22H
 
2
O
25.11.27Idrizite
(Mg,Fe)(Al,Fe)
 
2
(SO
 
4
)
 
3
(OH)
 
2
·15H
 
2
O or near
25.11.28Lishizhenite
ZnFe
 
2
(SO
 
4
)
 
4
·14H
 
2
O
25.11.29Zincovoltaite
K
 
2
Zn
 
5
Fe
3+
3
Al[SO
 
4
]
 
12
 · 18H
 
2
O

Other Names for Slavíkite

Synonyms:
FranqueniteParacoquimbite (of Klvana)
German names:
Slavikit
Russian names:
Славикит
Spanish names:
Slavikita

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 Slavíkite

Reference List:Klvana (1882) Böhm. Ges., Ber.: 272, [1881] (as Paracoquimbite).

Jirovsky and Ulrich (1926) Vešt. Stát. Geol. Úst. Českoslov. Rep.: 2: 345.

American Mineralogist (1928): 13: 492.

Meixner (1939) Centralblatt für Mineralogie, Geologie und Paleontologie, Stuttgart: 110.

Gordon (1941) Academy of Natural Science of Philadelphia, Notulae Naturae: 89.

Rost (1941) Ak. Česká Roz.: 51(8) - Min. Abstracts: 9: 204 (1946).

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.: 621-622.

Süsse, P. (1975): Structure and crystal chemistry of slavikite, NaMg2Fe5(SO4)7(OH)6.33H2O. Neues Jahrbuch für Mineralogie, Monatshefte 1975, 27-40. (In German.)

Internet Links for Slavíkite

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  • Raman and XRD data at RRUFF project
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    Localities for Slavíkite

    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.
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    (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.
    Argentina
     
    • San Juan
      • La Alcaparrosa
    		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: 480, 609, 622, 1014.
    Austria
     
    • Carinthia
      • Hohe Tauern Mts
        • Hafner group
          • Pölla valley
            • Zanaischg (Zaneischg)
    		G. Niedermayr, I. Praetzel: Mineralien Kärntens, 1995
    • Salzburg
      • Werfen
        • Pöham
          • Fritzbach valley
    		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: 622; A. Strasser: Die Minerale Salzburgs, 1989
    • Styria
      • Graz
        • Wildon
          • Weißenegg
    		Bernhard, F. (2006)
      • Niedere Tauern Mts
        • Hohentauern
          • Sunk
    		MEIXNER, H. (1980): Nr. 492. Slavikit und Pickeringit aus der Magnesitlagerstätte Hohentauern (Sunk) bei Trieben, Steiermark. In: MEIXNER, H. (1980): Neue Mineralfunde aus Österreich XXX. - Carinthia II, 170./90., 33-63. (in German); Kolitsch, U. & Brandstätter, F. (2006)
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
        • Jílové (Eule)
    		Lapis 2000(4), 13-30
        • Skřivaň
    		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: 622; J.W. Anthony, R.A. Bideaux, K.W. Bladh, M.C. Nichols: Handbook of Mineralogy, Vol. V (2003)
    J.W. Anthony, R.A. Bideaux, K.W. Bladh, M.C. Nichols: Handbook of Mineralogy, Vol. V (2003)
    • Moravia (Mähren; Maehren)
      • Olomouc Region
    		 Petr Paulis (2001): Die interessanten mineralogische Fundstellen in Mahren und Schlesien; Kuttna, Kutná Hora p69-73
    France
     
    • Midi-Pyrénées
      • Aveyron
        • Decazeville
          • Conques
    		R. Pierrot, R. Pulou, P. Picot : "Inventaire Minéralogique de la France N° 7 : Aveyron", BRGM, 1977
    M. Lenfant : "Occurrence de slavikite dans le district minier du Kaymar (Aveyron)", Bull. Soc. Franç. Mineral. Cristal. , 1964, N°4, p 622
    Germany
     
    • Thuringia
      • Gera
        • Ronneburg U deposit
    		T. Witzke & F. Rüger: Lapis 1998(7/8), 26-64
      • Wurzbach
        • Lehesten
    		- Liebeskind, W., Lehrieder, E. (1992): Der Lehester Schieferbergbau, Der Aufschluss, Vol. 43, 139-153
    Greece
     
    • Attikí (Attica; Attika) Prefecture
      • Lavrion (Laurion; Laurium) District
        • Lavrion District Mines
          • Plaka
            • Plaka Mines
    		Lapis, 26 (11), 2001, 43
    Hungary
     
    • Borsod-Abaúj-Zemplén Co.
      • Rudabányai Mts.
        • Rudabánya
    		Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
    Italy
     
    • Aosta Valley
      • Saint-Marcel
    		Scaini G.,Mariani P.-I minerali d'Italia-Rizzoli Editore (1978)
    Norway
     
    • Oppland
      • Lom
        • Bøverdalen
    		T.T. Garmo (1972, pers. com.); Neumann (1985, p. 112).
    Collection from Elmar Lackner
    • Sør-Trøndelag
      • Oppdal
    		No reference listed
    No reference listed
    Witsø, T. (2005): Mineraler i Vinstradalen, Oppdal. Norsk Bergverksmuseum, skrift 30: 72-73
    Poland
     
    • Lower Silesia (Dolnośląskie)
      • Rudawy Janowickie Mts
    		Siuda, R.: Wieściszowice. Otoczak, 2004, nr. 31, p. 58-65.
    Romania
     
    • Harghita Co.
    		Acta Mineralogica Petrographica,2006,Szeged
    Slovakia
     
    • Bratislava Region
      • Malé Karpaty Mts
        • Pezinok
    		[MinRec 31:153-162]
    • Košice Region
      • Eastern Slovenské Rudohorie Mts
        • Medzev
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
        • Smolnik Mining District
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
    USA
     
    • Tennessee
      • Sevier Co.
        • Great Smoky Mts
    		Coskren, T. D. & Lauf, R. J. (2000): The Minerals of Alum Cave Bluff, Great Smoky Mountains, Tennessee. Mineralogical Record, 31, 163-175.
    Mineral and/or Locality
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