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A blue indigo pigment is seen at the top of the water solution siphoned out from a concrete tank at the semi-industrial manufacture near San Miguel, El Salvador, 12 November 2016. For centuries, indigo, a natural deep blue dye extracted from the leaves of tropical plants (Indigofera), has been known to the native indigenous inhabitants of Central America who used the blue tincture to color their fabrics and pottery. Although demand for natural indigo dropped significantly at the end of 19th...more »
Copyright > © Jan Sochor. All rights reserved.
Date > 12 Nov 2016
Size > 4248x2832 / 12.8MB