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Cryolite
Cryolite from Ivittuut, Greenland
Cryolite from Ivittuut, Greenland
Peter Christian Abildgaard
Peter Christian Abildgaard
The cryolite mine at Ivigtut, Greenland, summer 1940
The cryolite mine at Ivigtut, Greenland, summer 1940
Aluminium 4
Aluminium 4
Aluminium ingot
Aluminium ingot
Three 1.0 pound (0.454 kg) bullion ingots of triple nine aluminium, iron, and copper etched with their scientific details.
Three 1.0 pound (0.454 kg) bullion ingots of triple nine aluminium, iron, and copper etched with their scientific details.
Bauxite, a major aluminium ore. The red-brown color is due to the presence of iron oxide minerals.
Bauxite, a major aluminium ore. The red-brown color is due to the presence of iron oxide minerals.