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  • Geochemistry, Mineralogy, Petrology & Volcanology (988 entries)
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
Calcite/Gypsum Crystals Growth on Lead/Zinc Ores Deposits
Calcite/Gypsum Crystals Growth on Lead/Zinc Ores Deposits by Metwally Hamza
Sample of Lead/Zinc Ores with Calcite/Gypsum Deposits as a result of the hydrothermal activity
Sample of Lead/Zinc Ores with Calcite/Gypsum Deposits as a result of the hydrothermal activity by Metwally Hamza
Lead Ore with Gypsum/Calcite Slices and Needles
Lead Ore with Gypsum/Calcite Slices and Needles by Metwally Hamza
Lead & Zinc Ores as a result of the hydrothermal activity
Lead & Zinc Ores as a result of the hydrothermal activity by Metwally Hamza
Lead Ore within Lime Deposits
Lead Ore within Lime Deposits by Metwally Hamza
Qarni Yarig mud volcano, Iran
Qarni Yarig mud volcano, Iran by Mehrdad Sarhangi
Microscopic studies in economic geology
Microscopic studies in economic geology by Mohammad Goudarzi
Blue schist from the Isle of Groix
Blue schist from the Isle of Groix by Sophie Graul
Blue schist sample from the Isle of Groix with ferroglaucophane
Blue schist sample from the Isle of Groix with ferroglaucophane by Sophie Graul
Blue schist sample from the Isle of Groix with ferroglaucophane
Blue schist sample from the Isle of Groix with ferroglaucophane by Sophie Graul
Blue schist from the Isle of Groix
Blue schist from the Isle of Groix by Sophie Graul
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