Spathose iron ore , Iseve, France; iron pyrites (bisulphide of iron, Elba; arborescent iron pyrites; dendritic oxide of manganese; oxide of...
Manganese steel medallion made by Sir Robert Hadfield . Hadfield was a British metallurgist who developed manganese steel in 1882, an alloy which was...
Lead glass coloured with manganese, made by James Powell and Sons Ltd. These coloured glasses are obtained by adding salts, generally oxides, of...
Lead glass coloured with manganese, made by James Powell and Sons Ltd. These coloured glasses are obtained by adding salts, generally oxides, of...
Sir Robert Hadfield invented manganese steel in 1882, and it was the first malleable, non-magnetic, ferrous product. It becomes harder and stiffer...
Johann Gahn started his career as a miner before studying mineralogy and developing a way of preparing metallic manganese on a large scale. With Carl...
Faenza jug, decorated in zaffera style in blue and manganese with stylized leaves, Italy, first half of the 15th century.
Health-China-environment-pollution-unrest BY FRANCOIS BOUGON A farmer carries her baskets balanced on a bamboo pole at a village near the Wugang...
Health-China-environment-pollution-unrest BY FRANCOIS BOUGONA farmer carries her baskets balanced on a bamboo pole as the sun sets over a village...
Health-China-environment-pollution-unrest BY FRANCOIS BOUGON A farmer tends to his ducks feeding beside the water at the edge of a rice field at a...