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Höwenegg Quarry (Hewenegg Quarry), Immendingen, Hegau, Baden-Württemberg, Germany

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Latitude & Longitude (WGS84): 47° 54' 36'' North , 8° 44' 50'' East
Latitude & Longitude (decimal): 47.91000,8.74722
Köppen climate type:Cfb : Temperate oceanic climate
Name(s) in local language(s):Steinbruch Höwenegg (Steinbruch Hewenegg), Immendingen, Hegau, Baden-Württemberg, Deutschland


A quarry in a Lower Tertiary nepheline-basalt, which was abandoned in 1979 and forms part of a protected area since 1983. Höwenegg mountain, where the quarry is situated, is also a very important locality for Tertiary fossil mammals. Collecting here is strictly prohibited.
Located about 3 km south of Immendingen.

This quarry is the type locality of Amicite, which was discovered by Otto Krumm in thin veins of the Melilite-Nephelinite-rock and provided for research. The first description was made by Alberti, Hentschel & Vezzalini in 1979 (see reference). Amicite is associated with Merlinoite, Calcite and Aragonite.

Mineral List


26 valid minerals. 1 (TL) - type locality of valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Tertiary
2.588 - 66 Ma



ID: 2610893

Age: Cenozoic (2.588 - 66 Ma)

Description: effusive rock: lava

Comments: Also some occurrences with trachyte, phonolite, latite

Lithology: Alkali basalt, basanite, tephrite, nephelinite, tholeiitic basalt, olivine basalt, andesite

Reference: Toloczyki, M., P. Trurnit, A. Voges, H. Wittekindt, A. Zitzmann. Geological Map of Germany 1:M. Bundesanstalt für Geowissenschaften und Rohstoffe. [94]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

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- Der Aufschluss 1981(4), 130-134
- Tschernich, R. (1992), Zeolites of the World, p.42
- Alberti A., Hentschel G. and VezzaliniG. (1979) Amicite, a new natural zeolite - N.Jb.Miner. Mh., Jg. 1979, H.11, 481-488

Mineral and/or Locality  
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