Gabbro Quarry (Bärenstein Quarry), Bad Harzburg, Harz, Lower Saxony, Germany

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Gabbro-Steinbruch (Bärensteinbruch), Bad Harzburg, Harz, Niedersachsen, Deutschland

Active since 1838. Gabbronorite with hornfels and marble inclusions, alternating with granitic, syenitic and pegmatitic zones. Rich contact metamorphic and hydrothermal mineralizations.
Located in the Radau valley, 3 km south of Bad Harzburg.
Obtaining permissions for collecting has become very difficult (situation 10/2006).

References

- Quakenack, K.-H. (1967): Der Mineralbestand eines Kontaktmarmors im Radautal-Gabbro (Harz). Contributions to Mineralogy and Petrology 14, 204-223 (in German).
- Lapis 1978(10), 17
- Der Aufschluss 1981(7/8), 253-273
- Schnorrer-Köhler, G. (1988): Mineralogische Notizen IV, Der Aufschluss, Vol. 39, 153-168
- Emser Hefte 1989(1)
- Schnorrer-Köhler, G. (1991): Mineralogische Notizen V, Der Aufschluss, Vol. 42, 155-171

- http://www.nng.de/werke/harzburg.html [Link dead. Oct 2011]
- http://www.mineralienatlas.de/forum/index.php/topic,9494.new/boardseen.html#new

Mineral List

Actinolite Adamite Albite 'Albite-Anorthite Series' Allanite-(Ce) Almandine Analcime Anatase Andradite Anorthite var: Bytownite var: Labradorite Antigorite 'Apatite' Apophyllite-(KF) Arfvedsonite Arseniosiderite Arsenolite Arsenopyrite Augite Aurichalcite Axinite-(Fe) Biotite Brookite Brucite Calcite Cerussite 'Chabazite' Chalcopyrite 'Chlorite Group' var: Brunsvigite Chondrodite Chrysocolla Chrysotile

Clinochlore var: Leuchtenbergite var: Pennine Clinozoisite Cobaltite Cordierite Corundum Covellite Cubanite Datolite Diopside Dolomite Dravite Dundasite Enstatite Epidote Epistilbite ? Erythrite Fayalite Ferrohornblende Fluorapatite Forsterite Gadolinite-(Ce) Galena Gehlenite 'Gmelinite' Goethite Gold Graphite Greenockite Grossular Gypsum Hedenbergite Hematite Hemimorphite

'Heulandite' Hibschite Hörnesite 'Hydrogrossular' Hydroxylapatite Hydrozincite Hypersthene Ilmenite Jarosite 'K Feldspar var: Adularia' Kimzeyite Laumontite Lazarenkoite Löllingite Magnetite Malachite Manganite Marcasite Mesolite Microcline Mimetite Molybdenite Montmorillonite Muscovite Natrolite Orthoclase Parasymplesite Pentlandite Periclase Pharmacosiderite 'Phillipsite' Pigeonite Pitticite Prehnite

Pyrite Pyrolusite Pyrope Pyrrhotite Quartz var: Amethyst var: Rock Crystal var: Smoky Quartz Rhodochrosite Rhodonite Rucklidgeite Rutile Safflorite Schorl Schorlomite Scorodite 'Serpentine Group' Spessartine Sphalerite Spinel Stibarsen Stilbite-Ca Talc Titanite Todorokite 'Tourmaline' 'var: Verdelite' Tremolite Vesuvianite Wollastonite Zircon Zoisite

134 entries listed. 111 valid minerals.