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Holger Klapproth's Photo Gallery

View of open work with place of former water wheel and collapsed shaft

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Birkenberg, St Ulrich, Bollschweil, Breisgau-Hochschwarzwald, Freiburg, Baden-Württemberg, Germany

This is a part of the historic medieval mining area "Birkenberg" near St. Ulrich. This place was researched a few years ago by Freiburg University. It is a scientifically very interesting location as mining there was in medieval times only with no modern mining altering the site. Two of the adits were opened and researched. They are now secured and are part of a mining history path. Here the picture is taken in a place of open cast mining looking towards the place where a water wheel and a collapsed shaft (behind the wooden barrier visible in the picture center) were in old times. The place of the waterwheel was identified by archeologists trough structures chiseled in the rock where the wheel was held in place. The place is open to the public but a bit slippery when wet.
Copyright: © Dr. Holger Klapproth      Photo ID: 1000332     Uploaded by: Holger Klapproth   View Count: 10   Approval status: Public galleries    Type: Photo - 4032 x 3024 pixels (12.2 Mpix)

L08-VC0Fluorite CaF2 , Calcite CaCO3

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Artenberg quarry, Steinach, Ortenaukreis, Freiburg, Baden-Württemberg, Germany

Dimensions: 10 cm x 7 cm x 6 cm

Rare purple Fluorite from Artenberg. While the octahedron was the most common crystal form of Fluorite at this location the more complex forms are much more rare. Markel states in his book about Minerals of the Black Forest that these types of crystals were found in the first half of 20th century.
Copyright: © Dr. Holger Klapproth      Photo ID: 961528     Uploaded by: Holger Klapproth   View Count: 17   Approval status: Public galleries    Type: Photo - 5412 x 3527 pixels (19.1 Mpix)

VKA-C54Fluorite CaF2 , Baryte BaSO4

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Gottesehre Mine, Urberg, Dachsberg, Waldshut, Freiburg, Baden-Württemberg, Germany

Dimensions: 15 cm x 11 cm x 6 cm

Purple-grey Fluorite with slightly yellow Baryte crystals. Good Fluorite specimens from Gottesehre Mine are rare - though this was a Fluorite producer.
Copyright: © Dr. Holger Klapproth      Photo ID: 960710     Uploaded by: Holger Klapproth   View Count: 17   Approval status: Public galleries    Type: Photo - 5472 x 3648 pixels (20.0 Mpix)

3PY-XR7Pyromorphite Pb5(PO4)3Cl , Quartz SiO2 , Galena PbS

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Gottesehre Mine, Urberg, Dachsberg, Waldshut, Freiburg, Baden-Württemberg, Germany

Dimensions: 8 cm x 6 cm x 4 cm

Green Pyromorphite sitting on Quartz. On the right side of the specimen there is a little metallic grey Galena visible.
Copyright: © Dr. Holger Klapproth      Photo ID: 960692     Uploaded by: Holger Klapproth   View Count: 16   Approval status: Public galleries    Type: Photo - 5472 x 3648 pixels (20.0 Mpix)

CPC-0AHCalcite CaCO3 , Dolomite CaMg(CO3)2 , Sphalerite ZnS , Quartz SiO2

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North field, Freiburg im Breisgau, Freiburg, Baden-Württemberg, Germany

Dimensions: 14 cm x 7 cm x 10 cm

This is a typical underground specimen from the North Field of Schauinland. Slightly yellow Calcite is on top light brown Dolomite followed by Quartz and black Sphalerite. The top of the specimen is not visible but is covered completely by Calcite crystals. Specimens like this are hard to find nowadays. This one is from an old collection.
Copyright: © Dr. Holger Klapproth      Photo ID: 960678     Uploaded by: Holger Klapproth   View Count: 22   Approval status: Public galleries    Type: Photo - 5472 x 3648 pixels (20.0 Mpix)

FJH-9W3Silver Ag

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Alt St Joseph Mine, Wittichen, Schenkenzell, Rottweil, Freiburg, Baden-Württemberg, Germany

Dimensions: 50 mm x 20 mm x 15 mm

Very nice crystallized silver specimen from Alt Sankt Joseph Mine. As clearly visible this specimen was etched from the baryte matrix to free the silver crystals. Etching silver free from baryte is a brutal process using molten salts.
Copyright: © Dr. Holger Klapproth      Photo ID: 958180     Uploaded by: Holger Klapproth   View Count: 25   Approval status: Public galleries    Type: Photo - 5472 x 3648 pixels (20.0 Mpix)

VU8-3C5Pyromorphite Pb5(PO4)3Cl , Goethite α-Fe3+O(OH)

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Giesenbach, Reichenbach, Lahr, Ortenaukreis, Freiburg, Baden-Württemberg, Germany

Dimensions: 5 cm x 4 cm x 3 cm
Largest Crystal Size: 5 mm

Light green pyromorphite sitting on black goethite.
Copyright: © Dr. Holger Klapproth      Photo ID: 777525     Uploaded by: Holger Klapproth   View Count: 52   Approval status: Public galleries    Type: Photo - 4107 x 3328 pixels (13.7 Mpix)

On the underground train

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Finstergrund Mine, Wieden, Lörrach, Freiburg, Baden-Württemberg, Germany

Picture taken from the carriage of the underground train when entering the mine. The train takes visitors to the interesting areas of the mine from where the tour continues by foot. The train is run by batteries.
Copyright: © Dr. Holger Klapproth      Photo ID: 776643     Uploaded by: Holger Klapproth   View Count: 121   Approval status: Public galleries    Type: Photo - 3264 x 2448 pixels (8.0 Mpix)

View of collapsed "Grotta dell'Allume"

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Grotta dell'Allume, Faraglione Nico, Faraglioni di Levante, Porto Levante, Vulcano Island, Lipari, Eolie Islands, Messina Province, Sicily, Italy

View taken from a boat in October 2015. The ceiling of the Grotta has collapsed and reduced the size of the little cave seriously. The part that came down was the location where the Yavapaite was found a few years ago. As it did not look safe we did not inspect the leftovers of the cave but just went swimming to the submerged fumaroles in front of the place. In the background is a part of the area around the mud pool that is heated by fumaroles were tourists can bath for a fee.
Copyright: © Dr. Holger Klapproth      Photo ID: 710145     Uploaded by: Holger Klapproth   View Count: 362   Approval status: Public galleries    Type: Photo - 5472 x 3648 pixels (20.0 Mpix)

C9A-38UPhenakite Be2SiO4 , Quartz SiO2 , Dolomite CaMg(CO3)2 , Chalcopyrite CuFeS2 , Schorl Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)

04686700014947561139529.jpg
Wheal Edward, Botallack, St Just, Cornwall, England, UK

Field of View: 16 mm
Largest Crystal Size: 2 mm

Slightly yellowish looking prismatic phenakite crystal (twinned) - seen in the picture center covered by some dolomite crystals at the base. At the right end bottom end of the vug are some compact Schorl crystals. At the top of the vug is some chalcopyrite and to the left and right some associated quartz is visible. Though tiny this specimen was the best find I had at Wheal Edward until now. I initially picked it up on the dumps for the dolomite crystals and was later pleasantly surprised by the phenakite on it.
Copyright: © Dr. Holger Klapproth      Photo ID: 696784     Uploaded by: Holger Klapproth   View Count: 228   Approval status: Public galleries    Type: Photo - 3305 x 2216 pixels (7.3 Mpix)
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