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On the seventh photo, Malachite, Azurite, Crysocolla make up the mosaic.
Malachite is a famous and very popular semi-precious stone.
It is named for the Greek word for “mallow”, a green herb.
Its banded light and dark green designs are one-of-a-kind, and give it a unique ornamental quality unlike that of any other stone.
The light and dark green bands are so distinctive that malachite maybe one of the most easily recognized minerals by the general public.
A popular design of ceramic ware which imitates this banding is named after the mineral malachite.
It forms the banding from subtle changes in the oxidation states of the surrounding pore waters, but the exact mechanism is still not well understood.



All pictures from www.flickr.com