Galena - PbS, important ore of lead and silver, Quartz and Siderite

Galena, Galenite  - PbS, important ore of lead and silver

Molybdenite- main source of molybden contains 59%

Lepidolite source of lithium, rubidium caesium

Chalkopyrite - important coper ore contains 34 %, Sfalerite - ore contains 67% of zinc

Natural sample of precious opal from Dubnik Slovakia, white background

Limonite - Fe2O3- important iron ore, contains 40% of iron

Hematite- Fe2O3- important iron ore, contains 70% of iron

Siderite- FeCO3- important iron ore, contains 48% of iron

Detail of borehole  production natural shale gas

Detail of steel works industry, blast furnace

Traeder rowing his  boat at floating market Mekong River

Sample of golden pyrite - source of iron and sulfur

Chalkopyrite - important cooper ore contains 34 % of cooper,

Deforested area in a forest with cutted tree in the foreground

Lake Chungara with snowcap Parinacota volcano at background

Inside view to  the gold mine with ore vein

Construction of steel metalworks in Ostrava

Cooling tower of nuclear power plant Dukovany

Stone crushing line for gravel production

Forming machine for corrugated steel plate

Baking christmas cookies with star and reindeer

Flipping the steaks and vegetable on grill

Loading  heavy dump truck at the opencast mining

Car with bicycles on the roof runing at highway

Beer barrels in a stack - preparing to transportation

Cooling towers of nuclear powerplant with contrast of church

Climber descending snowy peak at mountains