Quartz, Germany

Can you help make this a better article? What good localities have we missed? Can you supply pictures of better specimens than those we show here? Can you give us more and better information about the specimens from these localities? Can you supply better geological or historical information on these localities?


Quartz
SiO₂ trigonal

Here will go a good picture of a quartz specimen from Germany and general remarks about the quartz from this country.


Here are some url's to some of the better quartz specimens here on mindat that can be considered for inclusion in the article. These, in mosc cases are just for temporairy use untill we can get images of the much better specimens that are almost certainly out there. We should also consider that there are probably localities out there with fine specimens that are not even mentioned on mindat. Also in some instances there are sometimes pictures on mindat, of specimens from a locality, but they were so ratty that I did not include them here, but there may also be relly good specimens from there that we should talk about in this article.



Quartz
Germany
Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany
[www.mindat.org]


Bernstein, Wunsiedel, Fichtelgebirge, Franconia, Bavaria, Germany
[www.mindat.org]

Johannes Mine, Göpfersgrün, Wunsiedel, Fichtelgebirge, Franconia, Bavaria, Germany
[www.mindat.org]


Wölsendorf Fluorite mining District, Schwandorf, Upper Palatinate, Bavaria, Germany
[www.mindat.org]
[www.mindat.org]

Reichenbach, Bensheim, Odenwald, Hesse, Germany
[www.mindat.org]


Usingen quartzite works, Usingen, Taunus Mts, Hesse, Germany
[www.mindat.org]
[www.mindat.org]


Charlotte Magdalena Mine, Bad Lauterberg, Harz Mts, Lower Saxony, Germany
[www.mindat.org]


Töberschekopf hill, Hahnenklee, Clausthal-Zellerfeld, Harz Mts, Lower Saxony, Germany
[www.mindat.org]
[www.mindat.org]

Hildesheim, Lower Saxony, Germany
[www.mindat.org]


Rumbeck Mtn (Taubenberg Mtn), Hohenrode, Rinteln, Lower Saxony, Germany
[www.mindat.org]
[www.mindat.org]

Wasserfall Quarry, Velbert, Niederberg area, North Rhine-Westphalia, Germany
[www.mindat.org]
[www.mindat.org]

Rohdenhaus Quarry (incl. Krieger Quarry), Rohdenhaus, Wülfrath, Niederberg area, North Rhine-Westphalia, Germany
[www.mindat.org]
[www.mindat.org]


Rösenbeck, Brilon, Sauerland, North Rhine-Westphalia, Germany
[www.mindat.org]


Dörnberg Mine, Ramsbeck, Meschede, Sauerland, North Rhine-Westphalia, Germany
[www.mindat.org]
[www.mindat.org]
[www.mindat.org]
[www.mindat.org]
[www.mindat.org]
[www.mindat.org]
[www.mindat.org]

Brühne quarry, Kallenhardt, Warstein, Sauerland, North Rhine-Westphalia, Germany
[www.mindat.org]

Auf dem Stein quarry, Suttrop, Warstein, Sauerland, North Rhine-Westphalia, Germany
[www.mindat.org]
[www.mindat.org]
[www.mindat.org]


Ettringer Bellerberg Mt., Ettringen, Mayen, Eifel Mts, Rhineland-Palatinate, Germany
[www.mindat.org]
[www.mindat.org]
[www.mindat.org]

Juchem Quarry, Niederwörresbach, Idar-Oberstein, Hunsrück Mts, Rhineland-Palatinate, Germany
[www.mindat.org]
[www.mindat.org]
[www.mindat.org]
[www.mindat.org]
[www.mindat.org]
[www.mindat.org]
[www.mindat.org]


Steinkaulenberg, Idar-Oberstein, Hunsrück Mts, Rhineland-Palatinate, Germany
[www.mindat.org]

Rösselhalde, Katzenloch, Kirschweiler, Hunsrück Mts, Rhineland-Palatinate, Germany
[www.mindat.org]
[www.mindat.org]

Basalt AG Quarry ("Ferdinand Kloos" Quarry), Langenthal, Monzingen, Hunsrück Mts, Rhineland-Palatinate, Germany
[www.mindat.org]

Limestone quarries, Stromberg, Hunsrück Mts, Rhineland-Palatinate, Germany
[www.mindat.org]

Lenz Quarry, Rockenhausen, Rhineland-Palatinate, Germany
[www.mindat.org]
[www.mindat.org]

Slate quarry, Kaub, Taunus Mts, Rhineland-Palatinate, Germany
[www.mindat.org]


Miehlen, Nastätten, Taunus Mts, Rhineland-Palatinate, Germany
[www.mindat.org]
[www.mindat.org]
[www.mindat.org]


Jammertal, Singhofen, Taunus Mts, Rhineland-Palatinate, Germany
[www.mindat.org]
[www.mindat.org]
[www.mindat.org]


Forstbach valley, St Goarshausen, Taunus Mts, Rhineland-Palatinate, Germany
[www.mindat.org]

Nochern, St Goarshausen, Taunus Mts, Rhineland-Palatinate, Germany
[www.mindat.org]
[www.mindat.org]

Dörfel Quarry (Bögl Quarry), Dörfel, Annaberg-Buchholz, Erzgebirge, Saxony, Germany
[www.mindat.org]
[www.mindat.org]
[www.mindat.org]

Wiesenbad, Annaberg-Buchholz, Erzgebirge, Saxony, Germany
[www.mindat.org]

Hakenkrümme Quarry, Aue, Erzgebirge, Saxony, Germany
[www.mindat.org]

Sauberg Mine, Ehrenfriedersdorf, Erzgebirge, Saxony, Germany
[www.mindat.org]

Beihilfe Mine, Halsbrücke, Freiberg District, Erzgebirge, Saxony, Germany
[www.mindat.org]

Schlottwitz, Glashütte, Erzgebirge, Saxony, Germany
[www.mindat.org]
[www.mindat.org]

Fahsel quarry, Bockau, Schwarzenberg District, Erzgebirge, Saxony, Germany
[www.mindat.org]
[www.mindat.org]


Oßling Quarry, Kamenz, Oberlausitz, Saxony, Germany
[www.mindat.org]


Bad Brambach, Vogtland, Saxony, Germany
[www.mindat.org]
[www.mindat.org]
[www.mindat.org]
[www.mindat.org]
[www.mindat.org]

Rock Currier
Crystals not pistols.



Edited 1 time(s). Last edit at 03/30/2009 08:58AM by Rock Currier.

Auf dem Stein quarry, Suttrop, Warstein, Sauerland, North Rhine-Westphalia, Germany

Suttrop-Type Quartz

The "type locality" of these crystals is "Auf der Vogelstange", a street at Suttrop, where crystals could be found until the area was mostly overbuilt. They can also be found in nearby quarries.

Similar quartz specimen can be found along a "belt" of Devonian and Carboniferous limestones at the northern end of the Sauerland, a low mountain range in Nordrhein-Westfalen, Germany. This belt extends over 150 km from Dornap near Wuppertal in the West to Wünneberg-Bleiwäsche south of Paderborn in the East and is about 20 km wide.
Among the many other locations where Suttrop-type quartz can be found are quarries at Kallenhardt, Wünnenberg-Bleiwäsche, Warstein, Hagen-Hohenlimburg, Velbert-Rhodenhaus.
The crystals themselves are younger than the Devonian limestones and formed probably during the late Paleocoic age in a hydrothermal environment.
The crystals can be up to 5cm long, but most are much smaller. The color of the translucent crystals is most commonly a creamy white to light brown. The crystals are characterized by a pseudohexagonal, double terminated habit and a zonar inner structure. Both geyser-like rhythmic movements of water and tectonic events have been discussed as a cause of the zonar pattern. The mineral anhydrite, CaSO4, was incorporated at relatively high temperatures; later some of it was dissolved at lower temperatures (anhydrite is more soluble at lower temperatures), leaving tiny cavities in the crystal that contribute to its white color. Interestingly, overall the temperature during crystal growth increased with time, starting at about 60-80°C and ending at above 120°C, perhaps even above 300°C (Behr et al., 1979), which is very different from the typical development of quartz from Alpine-type fissures, for example. The crystals have a very high number of fluid inclusions, consuming up to 10% of their volume. Accordingly, the crystals have a lower specific gravity than usual. They also never show any accessorial faces and are heavily twinned.
While single double-terminated crystals are most sought-after, the crystals usually occur in irregularly intergrown aggregates that may weigh many kilograms and sometimes accumulate in former karst cavities.



Edited 1 time(s). Last edit at 03/28/2009 10:26AM by Amir C. Akhavan.

Amir,
Thats useful information and I'm sure much of it will end up in the article.
Rock

Rock Currier
Crystals not pistols.

Hello.

There are quite a lot of localities in Germany.

Some really should be mentioned. Sorry, if some are already listed.

Baden-Württemberg:

Öschelbronn and Dietlingen near Pforzheim

known localities for smoky to almost black double terminated xls, usually 5 mm to 2 cm, rarely up to 4 cm (at least the biggest I've seen). Those are formed in dolomitic marls ("Mittlerer Muschelkalk", mid-triassic). They are double-layered with a crumbly and grainy quartz-anhydrite mixture in the core, covered by a well crystallized outer layer with inclucions of bituninous matter, colouring the xls (so not being a real smoky quartz). Those xls are unique and only known from te northern and northeastern rim of the Black Forest. They are called "Pforzheimer Stinkquarz" (the "stink" means smelling, because freshly broken xls smell burnt because of the bituminous matter). The xls can be collected on the fields after harvest.

Im Gehn Quarry, Bramsche, North Rhine-Westphalia

Nice Rock Crystals.

Amethyst locations in saxony (Erzgebirge Mts.) which have produced nice specimen include Seidelgrund Amethyst vein, Wiesenbad and Gebirge near Marienberg.

Smoky Quartz xls up to 12 cm have been found in Granulitgebirge Mts., Saxony (near Chemnitz).

There, at Mühlau a bigger pocket had been hit when a pipeline or cable trench had been built. The xls are prismatic, brown with white rim (partly and thin). Nice ones up to dm in length are from Elzing Quarry, Limbach-Oberfrohna. I've seen a cavity (xls already removed, but a friend told me they were up to at least 50 cm) I could nearly go into. Those are cavities in pegmatite veins, usually accompanied by feldspar xls (orthoclase) and Schorl xls.

Then there are lots of agate localities in Germany.

Regards,
Sebastia Möller

Sebastian,
We really need someone to do the article on German Quartz. Any interest?

Rock Currier
Crystals not pistols.