Mineralienatlas - Fossilienatlas
Steklite |
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Steklit weiße Aggregate von Steklit, Yadovitaya Fumarole, zweiter Schlackenkegel der Großen Spalteneruption, Tolbachik, Kamtschatka, Russland; BB < 1 mm, analysiert Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit Location: Russland/Ferner Osten, Föderationskreis/Kamtschatka, Krai/Tolbachik-Vulkan/Große Spalteneruption (Great Fissure)/nördlicher Bruch/zweiter Schlackenkegel/Yadovitaya-Fumarole Mineral: Steklite Image: 1580058009 Rating: 8 (votes: 1) License: Usage for Mineralienatlas project only |
Steklit |
weiße Aggregate von Steklit, Yadovitaya Fumarole, zweiter Schlackenkegel der Großen Spalteneruption, Tolbachik, Kamtschatka, Russland; BB < 1 mm, analysiert |
Copyright: | MinTreasure.com (Carsten Slotta) |
Contribution: openpit 2020-01-26 |
Locality: Yadovitaya-Fumarole / zweiter Schlackenkegel / nördlicher Bruch / Große Spalteneruption (Great Fissure) / Tolbachik-Vulkan / Kamtschatka, Krai / Ferner Osten, Föderationskreis / Russland |
Collectors Summary
Color | farblos, weiß, grauweiß |
Streak color | weiß |
Lustre | Glasglanz |
Hardness (Mohs) | 2.5 |
Cleavages | vollkommen {001} |
Crystal System | trigonal, P321 |
Chemism
Chemical formula |
KAl(SO4)2 |
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Empirical formula (analysis) |
(K0.997Na0.008Ca0.004)Σ1.009(Al0.925Fe3+0.066Mg0.003Mn0.001)Σ0.995S2.001O8 |
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Additional chem. information |
K-Analog von Godovikovit |
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Chemical composition |
Aluminium, Kalium, Sauerstoff, Schwefel |
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Analysis wt% |
Na2O : 0.09, K2O : 18.12, CaO : 0.08, MnO : 0.03, Fe2O3 : 2.02, Al2O3 : 18.18, SO3 : 61.80, Total : 100.37 |
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Strunz 9th edition incl. updates |
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7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate) |
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Lapis Classification |
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VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE |
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Classification by Hölzel |
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7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES |
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IMA status |
anerkannt - CNMNC - New minerals and nomenclature modifications approved in Jun. 2011 |
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Mineral status |
anerkanntes Mineral |
Optical Properties
farblos, weiß, grauweiß |
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weiß |
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transparent |
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Glasglanz |
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RI value α / ω / n |
no = 1.546 (2) |
RI value γ / ε |
ne = 1.533(3) |
Crystallography
Crystals 3D
Open larger view |
Crystal Structure 3D
Open larger view |
Physical Properties
2.5 |
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2.797 (berechnet) |
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2.792 ( ρ calc. Mineralienatlas ) |
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vollkommen {001} |
(Co-)Type locality
(Co-)Type locality |
Russland/Ferner Osten, Föderationskreis/Kamtschatka, Krai/Tolbachik-Vulkan/Große Spalteneruption (Great Fissure)/nördlicher Bruch/zweiter Schlackenkegel/Yadovitaya-Fumarole |
Type material |
Fersman mineralogisches Museum der russischen Akademie der Wissenschaften, Moskau, Russland |
Collection number of type material |
4109/1 |
Preface
References
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. http://systematic-mineralogy.com/about.aspx 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; M. N. Murashko, I. V. Pekov, S. V. Krivovichev, A. P. Chernyatyeva, V. O. Yapaskurt, A. E. Zadov, M. E. Zelensky: 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 Vol. 55, Issue 7 (2013) S. 594–600. |
Other languages
German |
Steklit |
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English |
Steklite |
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Russian |
Стеклит |
CNMNC (IMA)-Number
IMA 2011-041 |
CNMNC symbol
Symbol |
Sek |
Automatic Links to external internet sources (Responsibility is with the operator)
Mineral Dealer
Locations with GPS information
IDs
GUSID (Global unique identifier short form) | w0uFSBWFjkeEwsEfs1h0dQ |
GUID (Global unique identifier) | 48854BC3-8515-478E-84C2-C11FB3587475 |
Database ID | 7027 |