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Steklite

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About StekliteHide

Formula:
KAl(SO4)2
Crystal System:
Trigonal
Name:
From the Russian word стекло (steklo) for glass as an allusion to the visual appearance of aggregates of the mineral formed around vents of a burning coal heap (coal mine N 47 near Kopeisk, South Urals, Russia).
K-analogue of godovikovite.

Found on a burnt coal dump, so first considered to be anthropogenic and not to be a true mineral.

First published without approval in 1995, then approved in 2011 from a natural occurrence (Yadovitaya fumarole, Tolbachik volcano).



Classification of StekliteHide

Approved
Approval Year:
2011

Chemical Properties of StekliteHide

Formula:
KAl(SO4)2

Crystallography of StekliteHide

Crystal System:
Trigonal
Class (H-M):
3 2 - Trapezohedral
Space Group:
P3 2 1
Cell Parameters:
a = 4.7281(3) Å, c = 7.9936(5) Å
Ratio:
a:c = 1 : 1.691
Unit Cell V:
154.76 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
8.02(34)
4.085(11)
3.649(100)
2.861(51)
2.660(19)
2.364(25)
2.267(14)
1.822(12)

Type Occurrence of StekliteHide

Place of Conservation of Type Material:
Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, registration number 4109/1
Geological Setting of Type Material:
Burnt coal dump
Fumarole

Synonyms of StekliteHide

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for StekliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
D. M. Lapham, J. H. Barns, W. Downey Jr. and R. B. Finkelman (1980): Mineralogy associated with burning Anthracite deposits of Eastern Pennsylvania. Commonwealth of Pennsylvania, Department of Environmental Resources, Bureau of Topographic and Geologic Survey, Mineral Resources Report 78, 82 pp. [as unnamed KAl(SO4)2]
Chesnokov, B.V., Bazhenova, L.F., Bushmakin, A.F., et al (1995) New minerals from burnt dumps of the Chelyabinsk coal basin (the 7th report). Ural'skii Mineralogicheskii Sb., 4, 3-28.
Chernyatieva, A.P., Krivovichev, A.V., Siidra, O.I., Murashko, M.N., Pekov, I.V. (2011): Crystal structure of natural "steklite" KAl(SO4)2. Preliminary program of XVII International Conference ob Crystal Chemistry, XRD & Spectroscopy of Minerals. Poster Sessions. 2. Structure-Property Relationships, Poster n. 2.6.
Murashko, M.N., Pekov, I.V., Krivovichev, S.V., Chernyatieva, A.P.,Yapaskurt, V.O. and Zadov, A.E. (2011): Steklite, IMA 2011-041. CNMNC Newsletter No. 10, October 2011, page 2558.
Murashko, M.; Pekov, I.; Krivovichev, S.; Chernyatyeva, A.; Yapaskurt, V.; Zadov, A.; Zelensky, M. (2013): Steklite, KAl(SO4)2: A finding at the Tolbachik Volcano, Kamchatka, Russia, validating its status as a mineral species and crystal structure. Geology of Ore Deposits, 55, 594-600.

Internet Links for StekliteHide

Localities for StekliteHide

ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Poland
 
  • Upper Silesia (Śląskie)
    • Upper Silesian Coal Basin
      • Rybnik Coal Area
        • Radlin
Łukasz Kruszewski (2012) Unique chloride assemblage of exhalative origin from burning coal-mining dump in Radlin (Rybnik Coal Area, S Poland). Mineralogical Society of Poland Special Papers 40
Russia (TL)
 
  • Kamchatka Oblast'
    • Tolbachik volcano
      • Great Fissure eruption (Main Fracture)
        • Northern Breakthrough (North Breach)
          • Second scoria cone
Murashko, M.N., Pekov, I.V., Krivovichev, S.V., Chernyatieva, A.P.,Yapaskurt, V.O. and Zadov, A.E. (2011):Steklite, IMA 2011-041. CNMNC Newsletter No. 10, October 2011, page 2558; Murashko, M.; Pekov, I.; Krivovichev, S.; Chernyatyeva, A.; Yapaskurt, V.; Zadov, A.; Zelensky, M. (2013): Steklite, KAl(SO4)2: A finding at the Tolbachik Volcano, Kamchatka, Russia, validating its status as a mineral species and crystal structure. Geology of Ore Deposits, 55, 594-600.; Pekov, I.V., Zubkova, N.V., Yapaskurt, V.O., Belakovskiy, D.I., Chukanov, N.V., Lykova, I.S., Savelyev, D.P., Sidorov, E.G., Pushcharovsky, D.Yu. (2014): Wulffite, K3NaCu4O2(SO4)4, and parawulffite, K5Na3Cu8O4(SO4)8, two new minerals from fumarole sublimates of the Tolbachik Volcano, Kamchatka, Russia. Canadian Mineralogist, 52, 699-716
  • Urals Region
    • Southern Urals
      • Chelyabinsk Oblast'
Cesnokov, B., Kotrly, M. and Nisanbajev, T. (1998): Brennende Abraumhalden und Aufschlüsse im Tscheljabinsker Kohlenbecken - eine reiche Mineralienküche. Mineralien-Welt, 9 (3), 54-63 (in German). [as unnamed KAl(SO4)2]
          • Kopeisk
            • Coal Mine No. 47
Igor Pekov (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
USA
 
  • Pennsylvania
    • Schuylkill Co.
D. M. Lapham, J. H. Barns, W. Downey Jr. and R. B. Finkelman (1980): Mineralogy associated with burning Anthracite deposits of Eastern Pennsylvania. Commonwealth of Pennsylvania, Department of Environmental Resources, Bureau of Topographic and Geologic Survey, Mineral Resources Report 78, 82 pp. [as unnamed KAl(SO4)2]
Mineral and/or Locality  
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