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Godovikovite

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Carola Mine (Königin Carola Mine; Paul Berndt Mine), Freital, Dresden, Saxony, Germany
© Thomas Witzke

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Formula:
(NH
 
4
)Al(SO
 
4
)
 
2
Type material Fe-bearing.
System:TrigonalHardness:2
Name:For Russian mineralogist and Director of the Fersman Mineralogical Museum, Moscow, Russia, Aleksandr Aleksandrovich Godovikov (1927-1995).
Isostructural with:Sabieite


The Al analogue of sabieite and the NH4 analogue of steklite.

Hydrates to tschermigite at room temperature. Slightly hygroscopic; dissolves slowly in water.
May occur in burning coal dumps as a dehydration product of tschermigite.

Classification of Godovikovite

IMA status:Approved 1987
Strunz 8th edition ID:6/A.05-10
Nickel-Strunz 10th (pending) edition ID:7.AC.20

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
A : Sulfates (selenates, etc.) without additional anions, without H2O
C : With medium-sized and large cations
Dana 8th edition ID:28.3.5.2

28 : ANHYDROUS ACID AND NORMAL SULFATES
3 : AXO4
Hey's CIM Ref.:25.11.18

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

Type Locality:Kopeisk, Chelyabinsk coal basin, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia
Year of Discovery:1987

Physical Properties of Godovikovite

Hardness (Mohs):2

Crystallography of Godovikovite

Crystal System:Trigonal
Class (H-M):3 2 - Trapezohedral
Space Group:P3 2 1
Cell Parameters:a = 4.75Å, c = 8.30(1) Å
Ratio:a:c = 1 : 1.747
Unit Cell Volume:V 162.18 ų (Calculated from Unit Cell)
Z:1

Optical Data of Godovikovite

Type:Uniaxial (+)
RI values: nω = 1.572 nε = 1.581
Maximum Birefringence:δ = 0.009

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

Chemical Properties of Godovikovite

Formula:
(NH
 
4
)Al(SO
 
4
)
 
2


Type material Fe-bearing.
Essential elements:Al, H, N, O, S
All elements listed in formula:Al, H, N, O, S

Relationship of Godovikovite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
7.AC.05Vanthoffite
Na
 
6
Mg(SO
 
4
)
 
4
7.AC.08Pyracmonite
(NH
 
4
)
 
3
Fe(SO
 
4
)
 
3
7.AC.10Efremovite
(NH
 
4
)
 
2
Mg
 
2
(SO
 
4
)
 
3
7.AC.10Langbeinite
K
 
2
Mg
 
2
(SO
 
4
)
 
3
7.AC.10Manganolangbeinite
K
 
2
Mn
 
2
(SO
 
4
)
 
3
7.AC.15Yavapaiite
KFe(SO
 
4
)
 
2
7.AC.15Eldfellite
NaFe
3+
 
(SO
 
4
)
 
2
7.AC.20Sabieite
(NH
 
4
)Fe
3+
 
(SO
 
4
)
 
2
7.AC.25Thenardite
Na
 
2
SO
 
4
7.AC.30Metathenardite
Na
 
2
SO
 
4
7.AC.35Aphthitalite
(K,Na)
 
3
Na(SO
 
4
)
 
2
Related Minerals - Hey's Index Grouping:

- +
25.11.1Natrojarosite
NaFe
 
3
(SO
 
4
)
 
2
(OH)
 
6
25.11.2Sideronatrite
Na
 
2
Fe(SO
 
4
)
 
2
(OH) · 3H
 
2
O
25.11.3Metasideronatrite
Na
 
2
Fe(SO
 
4
)
 
2
(OH) · H
 
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
(SO
 
4
)
 
2
(OH)
 
6
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
3+
 
(SO
 
4
)
 
2
25.11.14Ammoniojarosite
(NH
 
4
)Fe
3+
3
(SO
 
4
)
 
2
(OH)
 
6
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
25.11.19Botryogen
MgFe
3+
 
(SO
 
4
)
 
2
(OH) · 7H
 
2
O
25.11.21Slavíkite
(H
 
3
O
+
 
)
 
3
Mg
 
6
Fe
 
15
(SO
 
4
)
 
21
(OH)
 
18
 · 99H
 
2
O
25.11.23Sturmanite
Ca
 
6
(Fe
3+
 
,Al,Mn
3+
 
)
 
2
(SO
 
4
)
 
2
[B(OH)
 
4
](OH)
 
12
 · 25H
 
2
O
25.11.24Millosevichite
(Al,Fe)
 
2
(SO
 
4
)
 
3
25.11.25Aluminocopiapite
Al
 
2/3
Fe
3+
4
(SO
 
4
)
 
6
(OH)
 
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 Godovikovite

Synonyms:
IMA1987-019Unnamed (NH4-Al Sulphate)
Other Languages:
German:Godovikovit
Spanish:Godovikovita

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 Godovikovite

Reference List:

- +
Shcherbakova, Y.P., L.F. Bazhenova, and B.V. Chesnokov (1988): Godovikovite
– NH4(Al, Fe)(SO4)2, a new ammonium-bearing sulfate. Zapiski Vserossiyskogo Mineralogicheskogo Obshchestv 117, 208-211 (in Russian).

American Mineralogist: 75: 241-242 (Abs.)

Boujelben, M., Toumi, M. & Mhiri, T. (2008): X-ray structure determination of NH4Al(SO4)2. Annales De Chimie - Science Des Materiaux 33, 379-386.

Internet Links for Godovikovite

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    • Localities for Godovikovite

    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.
    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.
    Bulgaria
     
    • Blagoevgrad Oblast
    		Elena Shcherbakova, Larisa Nesheva (2010) Ammonium sulfates from coal mine Pirin REVIEW OF THE BULGARIAN GEOLOGICAL SOCIETY, vol. 71, part 1–3, , p. 17–23
    China
     
    • Inner Mongolia Autonomous Region
      • Wuhai League (Wuhai Prefecture)
        • Wuda District
    		Geological Society of America Abstracts with Programs, Vol. 39, No. 2, p. 81
    Am Min 90:1729-1739
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
    		Zacek, V., Oplustil, S., Mayova, A. & Meyer, F. R. (1995): Die Mineralien von Kladno in Mittelböhmen, Tschechische Republik. Mineralien-Welt 6 (1), 13-30 (in German).
          • Libušin
    		Hyrsl J., Korbel P.; Tschechien & Slowakei, Mineralien und Fundstellen. Bode Verlag, 2008. Page 268-273
      • Hradec Králové Region
        • Trutnov (Trautenau)
          • Radvanice
    		Sejkora, J., Kotrlý, M.: Sulfáty vysokoteplotní oxidační minerální asociace; hořící odval dolu Kateřina v Radvanicích v Čechách. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 2001, roč. 9, s. 261-267.
    Germany
     
    • North Rhine-Westphalia
      • Aachen
        • Alsdorf
    		Sindern, S., Warnsloh, J. M., Witzke, T., Havenith, V., Neef, R. & Etoundi, Y. (2005): Mineralogy and geochemistry of vents formed on the burning coal mining waste dump Anna I, Alsdorf, Germany. Eur. J. Mineral. 17, Beih. 1, 130.
    • Saxony
      • Dresden
        • Freital
    		Thalheim, K.; Reichel, W. & Witzke, T. (1991): Die Minerale des Döhlener Beckens.- Schriften des Staatlichen Museums für Mineralogie und Geologie zu Dresden, Nr. 3
    • Thuringia
      • Gera
        • Ronneburg U deposit
    		T. Witzke & F. Rüger: Lapis 1998(7/8), 26-64
    Hungary
     
    • Baranya Co.
      • Mecsek Mts.
        • Pécs
    		Szakáll, S. & Kristály, F. (2008): Ammonium sulphates from burning coal dumps at Komló and Pécs-Vasas, Mecsek Mts., South Hungary. Mineralogia, Special Papers, Vol. 32 (2nd Central-European Mineralogical Conference 2008 (CEMC)), 154.
    Italy
     
    • Sicily
      • Messina Province
        • Eolie Islands (Aeolian Islands)
          • Lipari
            • Vulcano Island
    		Campostrini I. et al - Vulcano: ein aussergewohnlicher Fundpunkt von neuen und seltenen Mineralien - MineralienWelt 2010 - nr.3 - p.40-57
    Japan
     
    • Hokkaido
      • Sorachi Province
        • Mikasa City
    		Shimobayashi, N., Ohnishi, M., Miura, H. (2011) Ammonium sulfate minerals from Mikasa, Hokkaido, Japan: boussingaultite, godovikovite, efremovite and tschermigite. Journal of Mineralogical and Petrological Sciences, 106, (in press).
    Poland
     
    • Upper Silesia (Śląskie)
      • Upper Silesian Coal Basin
        • Katowice area
    		Parafiniuk, J. and Kruszewski, Ł. (2009): Ammonium minerals from burning coal-dumps of the Upper Silesian Coal Basin (Poland). Geol. Quart., 53, 341-356. http://www.pgi.gov.pl/images/stories/G_Q/53_3/parafiniuk.pdf (esp. p. 347)]
    Russia
     
    • Urals Region
      • Southern Urals
        • Chelyabinsk Oblast'
          • Chelyabinsk coal basin
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; Cesnokov, B., M. Kotrly, and T. Nisanbajev (1998): Brennende Abraumhalden und Aufschlüsse im Tscheljabinsker Kohlenbecken - eine reiche Mineralienküche. Mineralien-Welt, 9 (3), 54-63 (in German).
    Tajikistan
     
    • Viloyati Sogd (Viloyati Sughd; Viloyati Khodzhent; Viloyati Leninabad)
      • Zeravshan Range
        • Yagnob River
    		D.I.Belakovskiy data
    http://rruff.geo.arizona.edu/doclib/hom/godovikovite.pdf.
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