Eberhard Riech's Photo Gallery

CYH-962Hematite Fe₂O₃ , Quartz SiO₂

Hering, Otzberg, Darmstadt-Dieburg, Darmstadt, Hesse, Germany

Dimensions: 11 cm x 8 cm x 7 cm
Weight: 630 g

Little Hematite xx in a breccia of Quartz and massive red Hematite-ore. Collected 1964 near the little village Zipfen near Otzberg, southern Hesse, Germany. Coll., photo and © E. Riech.

0T7-K9FQuartz SiO₂

St Anna Mine, Ochsen valley, Wolfshagen im Harz, Langelsheim, Goslar District, Lower Saxony, Germany

Dimensions: 14 cm x 14 cm x 5 cm
Field of View: 1140 mm
Largest Crystal Size: 30 mm

Quartz xx from the St. Anna mine, Ochsental (ox valley) near Wolfshagen, now part of Langelsheim, Lower Saxony, Germany. Please notice the habit of the crystal-surfaces. Coll., photo and ©: Eberhard Riech.

Device for example-demonstration of Dichromism

Timms Hill, Haddam, Middlesex County, Connecticut, USA

Dimensions: 35 mm x 43 mm x 8 mm

A Cordierite-crystal mounted for demonstration the dichroism. The crystal is rotating mounted in the middle of this plate (3.5 x 3.5 cm); between the two photos the rotation-angle was 90°. Produced by "Optisches Institut von Dr. Steeg & Reuter in Bad Homburg v.d.H.", spezialized in polarization optics. Founded 1855 in Bad Homburg near Frankfurt/Main, since 1877 under the name Dr. Steeg & Reuter. The single Cordierite-crystal has its origin on Timms Hill/Iolite Hill, Haddam, Middlesex Co., Connecticut, USA. Please compare with Mindat 668955. Collection, Photos and ©: Eberhard Riech.

79X-QALCerussite PbCO₃ , Limonite

Großfürstin Alexandra Mine, Goslar, Goslar District, Lower Saxony, Germany

Dimensions: 7.5 cm x 6.0 cm x 5.0 cm
Weight: 308 g

Little Cerussite xx on Limonite, Grube Großfürstin Alexandra south of Goslar, Harz Mts., Lower Saxony, Germany. Coll., photo and ©: Eberhard Riech.

LHN-FV2Pyrite FeS₂

Goslar District, Lower Saxony, Germany

Dimensions: 9.0 cm x 7.0 cm x 2.0 cm
Largest Crystal Size: 4 mm
Weight: 150 g

Pyrite xx on and in "Wissenbacher Schiefer" (devonian roofing slate) from the Glockenberg Mine south of Goslar, Harz Mts., Lower Saxony, Germany. Collection, photo and ©: Eberhard Riech.

W5L-TJUManganomelane, Malachite Cu₂(CO₃)(OH)₂ , Quartz SiO₂

Wolkenhügel Mine, Harz, Göttingen District, Lower Saxony, Germany

Dimensions: 6.5 cm x 6.0 cm x 4.5 cm
Weight: 240 g

Dendrites of manganese and iron oxides (Manganomelan) with Malachite on Quartz. Grube Wurzelnberg (Wurzelnberg mine above Kulmketal [Kulmke valley]; working 1908-1972), belonging to Grube Wolkenhügel in the Harz Mountains near Bad Lauterberg, Lower-Saxony, Germany. Collection, photo and ©: Eberhard Riech

3YW-EN1Löllingite FeAs₂

Złoty Stok, Gmina Złoty Stok, Ząbkowice Śląskie County, Lower Silesian Voivodeship, Poland

Dimensions: 9.0 cm x 7.0 cm x 3.3 cm
Weight: 530 g

Löllingite (on the old label called "Leukopyrit") from Reichenstein/Silesia, Germany - now Zloty Stok, Poland. Collection, photo and ©: Eberhard Riech.

XWQ-FRCCalcite CaCO₃ , Schalenblende, Marcasite FeS₂

Diepenlinchen Mine, Mausbach, Stolberg, Aachen, Cologne, North Rhine-Westphalia, Germany

Dimensions: 6.0 cm x 5.0 cm x 2.5 cm
Largest Crystal Size: 25 mm
Weight: 90 g

Calcite xx with little brown Marcasite-spheres on "Schalenblende". Old specimen from Grube Diepelinchen (Diepelinchen mine) near Stolberg, North Rhine-Westphalia, Germany. Collection, photo and ©: Eberhard Riech.

FP8-K52Pyromorphite Pb₅(PO₄)₃Cl

Rosenberg Mine, Braubach, Loreley, Rhein-Lahn-Kreis, Rhineland-Palatinate, Germany

Dimensions: 3.0 cm x 3.0 cm x 2.5 cm

Pyromorphite xx from the Rosenberg mine, Braubach near Koblenz, Rhine valley, Germany. Coll., photo and ©: Eberhard Riech

UX0-9NHMalachite Cu₂(CO₃)(OH)₂ , Chalcopyrite CuFeS₂ , Baryte BaSO₄

Christiane Mine, Adorf, Diemelsee, Waldeck-Frankenberg, Kassel Region, Hesse, Germany

Dimensions: 10.0 cm x 3.5 cm x 3.0 cm
Weight: 145 g

Malachite-covered Chalkopyrite xx on red Baryte. Grube Christiane near Adorf, Hesse, Germany. Collection, photo and ©: Eberhard Riech.