Log in 
EGU Logo
The geosciences image and video repository
of the European Geosciences Union
Imaggeo Logo
  • Categories
  • Regions
  • Map
  • Tags
  • Videos
  • About
  • Copyright
  • Imprint
  • Privacy policy
  • Login
  • Categories
  • Regions
  • Map
  • Tags
  • Videos
  • Photo contest

Follow EGU on: Instagram Facebook Blog

  • Home /
  • Categories /
  • Geochemistry, Mineralogy, Petrology & Volcanology (975 entries)
Calcite Crystals Occurred in the Pb/Zn Ores Depositional Environment as a result of the Hydrothermal Activity
Calcite Crystals Occurred in the Pb/Zn Ores Depositional Environment as a result of the Hydrothermal Activity by Metwally Hamza
Needles-like Calcite Crystals with Pb/Zn Ores Occurrence
Needles-like Calcite Crystals with Pb/Zn Ores Occurrence by Metwally Hamza
Needles-like Calcite Crystals within Limegrits in a region of Pb/Zn Ores Occurrence
Needles-like Calcite Crystals within Limegrits in a region of Pb/Zn Ores Occurrence by Metwally Hamza
Volcanoes and glaciers
Volcanoes and glaciers by Rodrigo Balaguer-Romano
The Great Cone, Vesuvius.
The Great Cone, Vesuvius. by Vishnu Kaiprath Nambiar
Gypsum Mineral Sample
Gypsum Mineral Sample by Ahmed Mohy
Outcrop of Calcite/Gypsum Full-growth Crystals
Outcrop of Calcite/Gypsum Full-growth Crystals by Metwally Hamza
Outcrop of Desert Varnish
Outcrop of Desert Varnish by Metwally Hamza
DESERT BOULDERS (due to weathering processes in the region)
DESERT BOULDERS (due to weathering processes in the region) by Metwally Hamza
Outcrop of S-shaped Stretching occurred in a layer of highly altered Limegrits
Outcrop of S-shaped Stretching occurred in a layer of highly altered Limegrits by Metwally Hamza
Outcrop of Calcite/Gypsum Deposits with Siltstone, Kaolinite, and Fanglomerates of the Red Sea Facies (EGYPT)
Outcrop of Calcite/Gypsum Deposits with Siltstone, Kaolinite, and Fanglomerates of the Red Sea Facies (EGYPT) by Metwally Hamza
Needles-like Altered Gypsum Crystals within Lime and Sands Deposits
Needles-like Altered Gypsum Crystals within Lime and Sands Deposits by Metwally Hamza
Mud Cracks Outcrop in Arid Area, Red Sea Coast, Egypt
Mud Cracks Outcrop in Arid Area, Red Sea Coast, Egypt by Metwally Hamza
Well-sorted Marine Clastics (medium- to coarse-sized) embedded within iron-oxides cement
Well-sorted Marine Clastics (medium- to coarse-sized) embedded within iron-oxides cement by Metwally Hamza
Cupper extraction from a local mine, Iran
Cupper extraction from a local mine, Iran by Mohammad Goudarzi
Epidote as a Semi-gemstone occurred within Lead/Zinc Ores and Iron Oxides Deposits
Epidote as a Semi-gemstone occurred within Lead/Zinc Ores and Iron Oxides Deposits by Metwally Hamza
Galena Ore (PbS) surrounded by Zincite Ores (Zinc Oxides, ZnO) and Iron Oxides (Hematite, Magnetite, Goethite)
Galena Ore (PbS) surrounded by Zincite Ores (Zinc Oxides, ZnO) and Iron Oxides (Hematite, Magnetite, Goethite) by Metwally Hamza
Epidote Occurrence within Lead/Zinc Ore Deposits
Epidote Occurrence within Lead/Zinc Ore Deposits by Metwally Hamza
Lead/Zinc Ore Deposits surrounded by Iron Oxides Deposits (Hematite, Magnetite & Goethite) with Calcite/Gypsum
Lead/Zinc Ore Deposits surrounded by Iron Oxides Deposits (Hematite, Magnetite & Goethite) with Calcite/Gypsum by Metwally Hamza
Gypsum Slice embedded in Lead/Zinc Ores Layer
Gypsum Slice embedded in Lead/Zinc Ores Layer by Metwally Hamza
Siliceous Stone with Calcite (CaCO3) & Gypsum (CaSO4.2H2O) Deposits
Siliceous Stone with Calcite (CaCO3) & Gypsum (CaSO4.2H2O) Deposits by Metwally Hamza
Growth of Calcite (CaCO3) & Gypsum (CaSO4.2H2O) on Lead/Zinc Ore Deposits
Growth of Calcite (CaCO3) & Gypsum (CaSO4.2H2O) on Lead/Zinc Ore Deposits by Metwally Hamza
Growth of Calcite (CaCO3) Crystals on Lead Ore (Galena, PbS) & Zinc Ore (Zincite, ZnO)
Growth of Calcite (CaCO3) Crystals on Lead Ore (Galena, PbS) & Zinc Ore (Zincite, ZnO) by Metwally Hamza
Siliceous Stone with Small Lines-shaped Slices of Calcite/Gypsum Deposits
Siliceous Stone with Small Lines-shaped Slices of Calcite/Gypsum Deposits by Metwally Hamza
more
  • About
  • Copyright
  • Imprint
  • Privacy policy
  • Photo competition
  • |
  • Follow EGU on:
  • LinkedIn
  • Instagram
  • YouTube
  • Facebook
  • Mastodon
  • Bluesky
  • EGU blogs