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Topaz-bearing orthogneiss occurrences (Laimbach Gneiss occurrences), Laimbach am Ostrong, Münichreith-Laimbach, Melk District, Lower Austria, Austriai
Regional Level Types
Topaz-bearing orthogneiss occurrences (Laimbach Gneiss occurrences)Group of Occurrences
Laimbach am OstrongVillage
Münichreith-LaimbachMunicipality
Melk DistrictDistrict
Lower AustriaState
AustriaCountry

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Latitude & Longitude (WGS84):
48° North , 15° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~1km
GRN:
N33E08
Type:
Group of Occurrences
Köppen climate type:
Cfb : Temperate oceanic climate
Mindat Locality ID:
416112
Long-form identifier:
mindat:1:2:416112:0
GUID (UUID V4):
0


Several occurrences of topaz-bearing orthogneiss with the "Monotonous Series" ('Monotone Serie'). The topaz was only found in creek sediments (Laimbach, Gottsbach).
The orthogneiss is peraluminous and contains up to 2760 ppm F. Petrologically it is similar to the Gföhl Gneiss and the Moldanubian granulites. Geringer et al. (2024) consider it as a more fractionated equivalent of the Gföhl Gneiss.
Stockinger et al. (2021) propose the name "Laimbach Gneiss".

Geringer et al. (2024) propose to name "the studied orthogneiss Laimbach Orthogneiss in the rank of a lithodeme (NACSN, 2005), after the locality Laimbach am Ostrong (48°19′01″N; 15°07′19″E), which is located centrally with respect to the occurrences of this gneiss".

Minerals listed are all rock-forming.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


8 valid minerals.

Detailed Mineral List:

ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ Almandine
Formula: Fe2+3Al2(SiO4)3
ⓘ Kyanite
Formula: Al2(SiO4)O
ⓘ Quartz
Formula: SiO2
ⓘ Scheelite
Formula: Ca(WO4)
ⓘ Sillimanite
Formula: Al2(SiO4)O
ⓘ Topaz
Formula: Al2(SiO4)(F,OH)2
References:
Göd, R. (1988): Zusammenfassende Übersicht über ausgeführte Erzprospektionsvorhaben, dabei eingesetzte Methoden sowie Hoffnungsgebiete im Kristallin der Böhmischen Masse. Unveröff. Bericht, Geologische Bundesanstalt, Wien, xx pp.
Stockinger, V., Göd, R., Grasemann, B., Linner, M., Klötzli, U., Abart, R., Slama, J. (2021): Geochronologie, Geochemie und Petrologie eines Topas-führenden Orthogneises innerhalb der „Monotonen Serie“ (Ostrong Einheit, NÖ). Mitt. Österr. Mineral. Ges. 167, 146.
Geringer, Annika; Iglseder, Christoph; Klötzli, Urs; Grasemann, Bernhard; Sláma, Jiří (2024) Topaz-bearing Lower Ordovician orthogneiss within the Ostrong Nappe System – The Laimbach Orthogneiss (Bohemian Massif, Lower Austria). Austrian Journal of Earth Sciences, 117 (1). p.25-44. doi:10.17738/ajes.2024.0003
ⓘ Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘScheelite7.GA.05Ca(WO4)
Group 9 - Silicates
ⓘAlmandine9.AD.25Fe2+3Al2(SiO4)3
ⓘZircon9.AD.30Zr(SiO4)
ⓘSillimanite9.AF.05Al2(SiO4)O
ⓘKyanite9.AF.15Al2(SiO4)O
ⓘTopaz9.AF.35Al2(SiO4)(F,OH)2
ⓘAlbite9.FA.35Na(AlSi3O8)

List of minerals for each chemical element

HHydrogen
Hⓘ TopazAl2(SiO4)(F,OH)2
OOxygen
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ AlmandineFe32+Al2(SiO4)3
Oⓘ KyaniteAl2(SiO4)O
Oⓘ QuartzSiO2
Oⓘ ScheeliteCa(WO4)
Oⓘ SillimaniteAl2(SiO4)O
Oⓘ TopazAl2(SiO4)(F,OH)2
Oⓘ ZirconZr(SiO4)
FFluorine
Fⓘ TopazAl2(SiO4)(F,OH)2
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ AlmandineFe32+Al2(SiO4)3
Alⓘ KyaniteAl2(SiO4)O
Alⓘ SillimaniteAl2(SiO4)O
Alⓘ TopazAl2(SiO4)(F,OH)2
SiSilicon
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ AlmandineFe32+Al2(SiO4)3
Siⓘ KyaniteAl2(SiO4)O
Siⓘ QuartzSiO2
Siⓘ SillimaniteAl2(SiO4)O
Siⓘ TopazAl2(SiO4)(F,OH)2
Siⓘ ZirconZr(SiO4)
CaCalcium
Caⓘ ScheeliteCa(WO4)
FeIron
Feⓘ AlmandineFe32+Al2(SiO4)3
ZrZirconium
Zrⓘ ZirconZr(SiO4)
WTungsten
Wⓘ ScheeliteCa(WO4)

Other Regions, Features and Areas containing this locality

Austria
Eurasian PlateTectonic Plate
EuropeContinent

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References

Göd, R. (1988): Zusammenfassende Übersicht über ausgeführte Erzprospektionsvorhaben, dabei eingesetzte Methoden sowie Hoffnungsgebiete im Kristallin der Böhmischen Masse. Unveröff. Bericht, Geologische Bundesanstalt, Wien, xx pp.
Graf, T.A. (2016): Petrographische Beschreibung von leukokraten, sillimanit führenden Orthogneisen und deren Schwermineralspektrum in der Monotonen Serie, Ostrong, Böhmische Masse. Bachelorarbeit, Universität Wien, 12 S. [https://opac.geologie.ac.at/ais312/dokumente/2016_Graf_Orthgneise%20Monotone%20Serie.pdf]
Stockinger, V. (2021): Geochronologie, Geochemie und Petrologie eines Topas-führenden Orthogneises innerhalb der Monotonen Serie (Ostrong Einheit, NÖ). Master’s Thesis, University of Vienna, Austria, xx pp. [Abstract in Mitt. Österr. Mineral. Ges. 167, 225.]
Stockinger, V., Göd, R., Grasemann, B., Linner, M., Klötzli, U., Abart, R., Slama, J. (2021): Geochronologie, Geochemie und Petrologie eines Topas-führenden Orthogneises innerhalb der „Monotonen Serie“ (Ostrong Einheit, NÖ). Mitt. Österr. Mineral. Ges. 167, 146 (abs.).
Geringer, Annika; Iglseder, Christoph; Klötzli, Urs; Grasemann, Bernhard; Sláma, Jiří (2024) Topaz-bearing Lower Ordovician orthogneiss within the Ostrong Nappe System – The Laimbach Orthogneiss (Bohemian Massif, Lower Austria). Austrian Journal of Earth Sciences, 117 (1). p.25-44. doi:10.17738/ajes.2024.0003
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