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Skeletal halites from Poland
New find of skeletal halites in Sieroszowice mine, Lubin-Głogów Copper District, Poland by Tomasz Praszkier
INTRODUCTION GEOLOGY and LOCATION
Reconstruction of geography of Earth in Late Permian (255 Mya) with marked location of the Zechstein sea.
Reconstruction of geography of Earth in Late Permian (255 Mya) with marked location of the Zechstein sea. Recent geographical unites are shown.
Zechstein Sea (blue) on map of recent Europe, with marked Legnica-Głogów Copper District.
HALITE FIND
Map of Lubin area showing depth of the copper deposit (red lines), main mining leases and shafts. Main shaft in Sieroszowice is marked by a bigger symbol.
View to the main shaft in Sieroszowice, copper deposit is on the depth of about 1000 m.
View to the main shaft in Sieroszowice, copper deposit is on the depth of about 1000 m.
View to the main shaft in Sieroszowice, copper deposit is on the depth of about 1000 m.
Underground train in Sieroszowice mine.
Exploatation in Sieroszowice mine.
Exploatation in Sieroszowice mine.
Exploatation in Sieroszowice mine.
Huge halite stalactites growing on celing from dripping saline-rich water.
Huge halite stalactites growing on celing from dripping saline-rich water.
Huge halite stalactites and stalagmites growing.
Huge halite helictites growing on celing from dripping saline-rich water.
Huge halite stalactites and stalagmites.
Huge halite stalactites/helictatites and stalagmites.
On the tunnel floor crystallization habits are much more diverse. Depending on local conditions halite grew as stalagmites, cubic crystals or skeletal crystals. Their colors depend on the level of water flow and presence of the coloring elements and vary from white (most common), thorough grey, black, green and red. According to electron microscope and XRD analyzes the most common inclusions in the halite are calcite/aragonite, covellite, sulphur (sic!) and tolbachite (first time described for the location). Substantial quantities of organic materials (bitumens) are also present.
Colorful halite crystals growing in an old tunnel. Red color is caused by inclusions of the iron oxides coming from weathered mine hardware. Green color in places where water flow level is higher is caused by presence of tolbachite.
Big stalagmite partly built by white skeletal halite crystals.
Big stalagmite partly built by white skeletal halite crystals.
Colorful halite crystals growing in an old tunnel. Red color is caused by inclusions of the iron oxides coming from weathered mine hardware. Green color in places where water flow level is higher is caused by presence of tolbachite.
Colorful halite crystals growing in an old tunnel. Red color is caused by inclusions of the iron oxides coming from weathered mine hardware. Green color in places where water flow level is higher is caused by presence of tolbachite.
Stalagmite built by white skeletal halite crystals.
The best specimens of sharp and lustrous skeletal green crystals grew only around small puddles. Usually a darker color is present closer to the center grades to white moving outside of the water dripping zone. The best crystals reach up to 12 cm and have superb architecture with very well developed geometric skeletal growth. The skeletal forms are an effect of a very fast growth of the crystals.
Small pond surrounded by skeletal green halite crystals. Tolbachite, which presence is a source of green color, grows in places where water flow is quite high.
Details of the small pond with green skeletal halite crystals.
Skeletal halite crystal from Sieroszowice mine. Size 3.5 cm. Photo M. Wikiera. Spirifer Minerals specimen.
Skeletal halite crystal from Sieroszowice mine. Size 11 cm. Photo M. Wikiera. Spirifer Minerals specimen.
Skeletal halite crystal from Sieroszowice mine. Size 8.5 cm. Photo M. Wikiera. Spirifer Minerals specimen.
Skeletal halite crystal from Sieroszowice mine. Size 3.5 cm. Photo M. Wikiera. Spirifer Minerals specimen.
Skeletal halite crystal from Sieroszowice mine. Size 4.5 cm. Photo M. Wikiera. Spirifer Minerals specimen.
Skeletal halite crystal from Sieroszowice mine. Size 5 cm. Photo M. Wikiera. Spirifer Minerals specimen.
Skeletal halite crystal from Sieroszowice mine. Size 5 cm. Photo M. Wikiera. Spirifer Minerals specimen.
Skeletal halite crystal from Sieroszowice mine. Size 4.5 cm. Photo M. Wikiera. Spirifer Minerals specimen.
Skeletal halite crystal from Sieroszowice mine. Size 4.5 cm. Photo M. Wikiera. Spirifer Minerals specimen.
Skeletal halite crystal from Sieroszowice mine. Size 5 cm. Photo M. Wikiera. Spirifer Minerals specimen.
Skeletal halite crystal from Sieroszowice mine. Size 5.5 cm. Photo M. Wikiera. Spirifer Minerals specimen.
Skeletal halite crystal from Sieroszowice mine. Size 4.5 cm. Photo M. Wikiera. Spirifer Minerals specimen.
Skeletal halite crystal from Sieroszowice mine. Size 5 cm. Photo M. Wikiera. Spirifer Minerals specimen.
Skeletal halite crystal from Sieroszowice mine. Size 6 cm. Photo M. Wikiera. Spirifer Minerals specimen.
Skeletal halite crystal from Sieroszowice mine. Size 6 cm. Photo M. Wikiera. Spirifer Minerals specimen.
Skeletal halite crystal from Sieroszowice mine. Size 10 cm. Spirifer Minerals specimen.
Skeletal halite crystal from Sieroszowice mine. Size 5 cm. Spirifer Minerals specimen.
Skeletal halite crystal from Sieroszowice mine. Size 6 cm. Spirifer Minerals specimen.
Skeletal halite crystal from Sieroszowice mine. Size 3.5 cm. Spirifer Minerals specimen.
Skeletal halite crystal from Sieroszowice mine. Size 3.5 cm. Spirifer Minerals specimen.
Skeletal halite crystal from Sieroszowice mine. Size 6.5 cm. Spirifer Minerals specimen.
Micro crystals of sulphur on aragonite, bar is 100 micrometres whats equals to 0.1 mm. Photo from an electron microscope.
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