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Letovicite

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About LetoviciteHide

08215850015378238985518.jpg
Letovice, Czech Republic
Formula:
(NH4)3H(SO4)2
Colour:
Colourless, white; colourless in transmitted light
Hardness:
1 - 2
Specific Gravity:
1.83
Crystal System:
Triclinic
Name:
After the type locality, Letovice (Lettowitz), Moravia, Czech Republic.
This species was described and named based on an anthropogenic origin (burning coal mine dumps) but has since been identified in nature.


Classification of LetoviciteHide

Approved, 'Grandfathered' (first described prior to 1959)
7.AD.20

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
A : Sulfates (selenates, etc.) without additional anions, without H2O
D : With only large cations
28.1.3.1

28 : ANHYDROUS ACID AND NORMAL SULFATES
1 : Anhydrous Acid Sulfates
25.1.9

25 : Sulphates
1 : Sulphates of the alkali metals and ammonium

Physical Properties of LetoviciteHide

Transparency:
Transparent
Colour:
Colourless, white; colourless in transmitted light
Hardness:
1 - 2 on Mohs scale
Cleavage:
Distinct/Good
On {001}.
Fracture:
Irregular/Uneven
Density:
1.83 g/cm3 (Measured)    

Optical Data of LetoviciteHide

Type:
Biaxial (-)
RI values:
nα = 1.501 nβ = 1.516 nγ = 1.525
2V:
Measured: 75° , Calculated: 74°
Max Birefringence:
δ = 0.024
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
relatively strong

Chemical Properties of LetoviciteHide

Formula:
(NH4)3H(SO4)2

Crystallography of LetoviciteHide

Crystal System:
Triclinic
Cell Parameters:
a = 5.87 Å, b = 10.17 Å, c = 8.27 Å
α = 101.1°, β = 111.1°, γ = 89.9°
Ratio:
a:b:c = 0.577 : 1 : 0.813
Unit Cell V:
450.75 ų (Calculated from Unit Cell)
Morphology:
Tiny pseudo-hexagonal plates on {001}. Granular massive.
Twinning:
Lamellar, common.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0009806LetoviciteLeclaire A, Ledesert M, Monier J, Daoud A, Damak M (1985) Structure du disulfate acide de triammonium. Une redetermination. Relations des chaines de liaisons hydrogene avec la morphologie et la conductivite eletrique _cod_database_code 1001784 Acta Crystallographica B41 209-21319850293
0014022LetoviciteFriese K, Aroyo M I, Schwalowsky I, Adiwidjaja G, Bismayer U (2002) The disordered high-temperature structure of (NH4)3H(SO4)2 and its relationship to the room-temperature phase Journal of Solid State Chemistry 165 136-1472002synthetic0293
CIF Raw Data - click here to close

Type Occurrence of LetoviciteHide

Geological Setting of Type Material:
Burning coal mine waste heaps.
Associated Minerals at Type Locality:

Other Language Names for LetoviciteHide

German:Letovicit
Spanish:Letovicita

Related Minerals - Nickel-Strunz GroupingHide

7.AD.CalciolangbeiniteK2Ca2(SO4)3Iso. 2 3 : P21 3
7.AD.BubnovaiteK2Na8Ca(SO4)6Trig. 3m : P3 1c
7.AD.05ArcaniteK2SO4Orth. mmm (2/m 2/m 2/m)
7.AD.05Mascagnite(NH4)2SO4Orth. mmm (2/m 2/m 2/m) : Pnma
7.AD.10MercalliteKHSO4Orth. mmm (2/m 2/m 2/m)
7.AD.15MiseniteK8H6(SO4)7Mon.
7.AD.25GlauberiteNa2Ca(SO4)2Mon. 2/m : B2/b
7.AD.30AnhydriteCaSO4Orth. mmm (2/m 2/m 2/m)
7.AD.35AnglesitePbSO4Orth. mmm (2/m 2/m 2/m) : Pnma
7.AD.35BaryteBaSO4Orth. mmm (2/m 2/m 2/m) : Pnma
7.AD.35CelestineSrSO4Orth. mmm (2/m 2/m 2/m) : Pnma
7.AD.35OlsacheritePb2(Se6+O4)(SO4)Orth.
7.AD.40KalistrontiteK2Sr(SO4)2Trig.
7.AD.40Palmierite(K,Na)2Pb(SO4)2Trig. 3m (3 2/m) : R3m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

25.1.1ThénarditeNa2SO4Orth. mmm (2/m 2/m 2/m) : Fddd
25.1.2MatteucciteNaHSO4 · H2OMon.
25.1.3MirabiliteNa2SO4 · 10H2OMon. 2/m
25.1.4ArcaniteK2SO4Orth. mmm (2/m 2/m 2/m)
25.1.5MercalliteKHSO4Orth. mmm (2/m 2/m 2/m)
25.1.6MiseniteK8H6(SO4)7Mon.
25.1.7Aphthitalite(K,Na)3Na(SO4)2Trig.
25.1.8Mascagnite(NH4)2SO4Orth. mmm (2/m 2/m 2/m) : Pnma
25.1.10Ammonioalunite(NH4)Al3(SO4)2(OH)6Trig.

Other InformationHide

Notes:
Readily soluble in water. Volatile.
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 LetoviciteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Marignac (1857) Annales des mines: 12: 523 (artificial crystals).
Wyrouboff (1880) Bulletin de la Société française de Minéralogie: 3: 209 (artificial crystals).
Gossner (1903) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 38: 158.
Groth, P. (1908) Chemische Krystallographie. Leipzig. 5 volumes: vol. 2: 317 (artificial).
Sekanina (1932) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 83: 117.
American Mineralogist (1933): 18: 180.
Rost (1937) Ak. Česká Roz.: 47(11).
Rost (1938) Neues Jahrbuch für Mineralogie, Geologie und Paleontologie, Heidelberg, Stuttgart: I: 360.
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: 397.
American Mineralogist (1985): 70: 1334.
Acta Crystallographica: B41: 209-213.
Journal of Applied Crystallography (1984): 17: 331-333.

Internet Links for LetoviciteHide

Localities for LetoviciteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - 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.
Austria
 
  • Styria
    • Leoben District
      • Leoben
Meixner, H. (1954): Neue Mineralfunde in den österreichischen Ostalpen XIII.- Carinthia II, 144./64., 18-29.
Czech Republic
 
  • Central Bohemian 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
Zacek, V., Skoda, R., Laufek, F., Kosek, F., & Jehlicka, J. (2019). Complementing knowledge about rare sulphates lonecreekite, NH4Fe3+ (SO4) 2· 12 H2O and sabieite, NH4Fe3+ (SO4) 2: chemical composition, XRD and RAMAN spectroscopy (Libusin near Kladno, the Czech Republic). Journal of Geosciences, 64(2), 149-159.
  • Hradec Králové Region
    • Trutnov District
      • Radvanice
Žáček, V., Ondruš, P.: Mineralogy of recently formed sublimates from Kateřina colliery in Radvanice, Eastern Bohemia, Czech Republic. Bulletin of the Czech geological survey, 1998, vol. 73, no. 2, s. 289-302.
  • South Moravian Region
    • Blansko District
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: 397.
Zeitschr.Krist.(1932) 83, 117-122
    • Brno-Country District
      • Oslavany
Hršelová, P., Cempírek, J., Houzar, S., Sejkora, J. (2013): S,F,Cl-rich mineral assemblages from burned spoil heaps in the Rosice-Oslavany coalfield, Czech Republic. Can. Mineral.: 51(1): 171-188
Germany
 
  • North Rhine-Westphalia
    • Cologne
      • Aachen
        • Alsdorf
Blaß, G. and Strehler, H. (1993): Mineralbildungen in einer durch Selbstentzündung brennenden Bergehalde des Aachener Steinkohlenreviers. Mineralien-Welt 4 (4), 35-42. (in German); Witzke, T., de Wit, F., Kolitsch, U. and Blaß, G. (2015): Mineralogy of the Burning Anna I Coal Mine Dump, Alsdorf, Germany. Chapter 7, pp. 203-240, in: Stracher, G. B., Prakash, A. and Sokol, E. V.: Coal and Peat Fires: A Global Perspective, Volume 3: Case Studies - Coal Fires, Elsevier, 786 pp.
    • The Ruhr
      • Oberhausen
http://www.wagnerul.de/Haldenbrand.html (visual ID)
  • Saxony
    • Sächsische Schweiz-Osterzgebirge
      • Freital
T. Witzke (1995): Neufunde aus Sachsen (IV): Neue Nachweise der seltenen Minerale Chernikovit, Ktenasit, Letovicit, Ramsbeckit, Ravatit und Znucalit. - Lapis 20, 9, 35-36
Hungary
 
  • Baranya County
    • Pécs District
SZAKÁLL, S. & KRISTÁLY, F. (2008) Ammonium sulphates from burning coal dumps at Komló and Pécs-Vasas, Mecsek Mts., South Hungary. Mineralogia. Special Papers 32,
  • Borsod-Abaúj-Zemplén County
    • Kazincbarcika District
Italy
 
  • Campania
    • Naples
      • Pozzuoli
- Russo, M., Campostrini, I., Demartin, F. (2017): I minerali di origine fumarolica dei Campi Flegrei: Solfatara di Pozzuoli (Napoli) e dintorni. Micro, 15, 122-192.
Poland
 
  • Silesian Voivodeship
    • Wodzisław County
      • 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
      • Rydułtowy
        • ROW Ruch Rydułtowy Mine
Kruszewski, Ł., Fabiańska, M.J., Ciesielczuk, J., Segit, T., Orłowski, R., Motyliński, R., Kusy, D., Moszumańska, I., 2018. First multi-tool exploration of a gas-condensate-pyrolysate system from the environment of burning coal mine heaps: An in situ FTIR and laboratory GC and PXRD study based on Upper Silesian materials. Science of the Total Environment, 640-641 (1 November 2018), 1044-1071; https://doi.org/10.1016/j.scitotenv.2018.05.319
South Africa
 
  • Free State
    • Fezile Dabi District
International Journal of Coal Geology 72 (2007) 124–140
  • Mpumalanga
    • Nkangala District
      • Witbank
International Journal of Coal Geology 72 (2007) 124–140
Tajikistan
 
  • Sughd
    • Zeravshan Range
      • Yagnob River
D.I.Belakovskiy data
Belakovski D.I.. Die Mineralien der brennenden Kohlefloze von Ravat in Tadshikistan, Lapis, 1990, N 12 p.21-26. (in German)
USA
 
  • California
    • Sonoma Co.
      • West Mayacmas Mining District
Vonsen, Magnus (1941) Preliminary report on minerals of The Geysers of Sonoma County, California. Mineralogist: 9: 246, 279; Vonsen, Magnus (1946), Minerals at “The Geysers,” Sonoma County, California: California Division Mines Report 42: 288; Dunning, Gail E. and J.F. Cooper (1969a) Letovicite from The Geysers, Sonoma County, California. California Division Mines and Geology Mineral Information Service: 22: 135; Dunning, G. S. & Cooper, J. F. (1993): History and minerals of The Geysers Sonoma County, California. Mineralogical Record 24(5): 339-352.
  • Oklahoma
    • Okmulgee Co.
Rocks & Minerals: 72(4): 252-264.
 
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