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Thin section in PPL of shelly phosphorite from the Ülgase deposit, Estonia.
Thin section in PPL of shelly phosphorite from the Ülgase deposit, Estonia. by Sophie Graul
Thin section in PPL of shelly phosphorite from the Ülgase deposit, Estonia.
Thin section in PPL of shelly phosphorite from the Ülgase deposit, Estonia. by Sophie Graul
Shelly phosphorite from the Aseri deposit, Estonia.
Shelly phosphorite from the Aseri deposit, Estonia. by Sophie Graul
Pyritised brachiopod shell fragment from the Toolse phosphorite deposit, Estonia.
Pyritised brachiopod shell fragment from the Toolse phosphorite deposit, Estonia. by Sophie Graul
Pyritised brachiopod shell fragment from the Toolse phosphorite deposit, Estonia.
Pyritised brachiopod shell fragment from the Toolse phosphorite deposit, Estonia. by Sophie Graul
Carbonate-cemented shelly phosphorite
Carbonate-cemented shelly phosphorite by Sophie Graul
Microphotograph of a calcite geode found in a glendonite structure
Microphotograph of a calcite geode found in a glendonite structure by Sophie Graul
Shelly phosphorite drill core
Shelly phosphorite drill core by Sophie Graul
Pyritised brachiopod shell from Aseri phosphorite deposit
Pyritised brachiopod shell from Aseri phosphorite deposit by Sophie Graul
Hydrothermal fluorite from La Barre, France
Hydrothermal fluorite from La Barre, France by Sophie Graul
Pyritised shell fragment from the Toolse phosphorite deposit, Estonia
Pyritised shell fragment from the Toolse phosphorite deposit, Estonia by Sophie Graul
Iron-rich shelly phosphorite, Estonia
Iron-rich shelly phosphorite, Estonia by Sophie Graul
Iron-rich shell fragment cemented by carbonate from the Kabala phosphorite deposit, Estonia
Iron-rich shell fragment cemented by carbonate from the Kabala phosphorite deposit, Estonia by Sophie Graul
Iron-rich shelly phosphorite, Estonia
Iron-rich shelly phosphorite, Estonia by Sophie Graul
Carbonate-cemented shells in Estonian phosphorites, from the Toolse deposit
Carbonate-cemented shells in Estonian phosphorites, from the Toolse deposit by Sophie Graul
Octahedral crystal of fluorite in silica matrix.
Octahedral crystal of fluorite in silica matrix. by Sophie Graul
Hydrothermal fluorite from la Barre former mine, France
Hydrothermal fluorite from la Barre former mine, France by Sophie Graul
Fluorite octahedron from La Barre mine
Fluorite octahedron from La Barre mine by Sophie Graul
Close-up of cubic fluorite crystals
Close-up of cubic fluorite crystals by Sophie Graul
Hornblende schist from Est Tyrol, Austria
Hornblende schist from Est Tyrol, Austria by Sophie Graul
Pyritised shell in Estonian phosphorites
Pyritised shell in Estonian phosphorites by Sophie Graul
Sulphide-bearing gneiss and quartzite from the Estonian Precambrian basement
Sulphide-bearing gneiss and quartzite from the Estonian Precambrian basement by Sophie Graul
Close-up of Hydrothermal fluorite from la Barre former mine, France
Close-up of Hydrothermal fluorite from la Barre former mine, France by Sophie Graul
Hydrothermal fluorite from la Barre former mine, France
Hydrothermal fluorite from la Barre former mine, France by Sophie Graul
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