Photo by J. Hyršl. Green malachite, Cu 2 (CO 3) (OH) 2, is very popular as an ornamental stone, with huge quantities coming every year from deposits in the Katanga Province of the Democratic Republic ...

Azurite, cinnabar, malachite, verdigris, carbon: These are the true colors of the Bible — the Gutenberg Bible, that is. For the first time in 600 years, the world has become privy to the ...

Malachite and verdigris, two copper-based pigments, are synthesized in this experiment intended for use in a general chemistry laboratory. The preparation of egg tempera paint from malachite is also ...

We have eyes, we have hands, we can work on the colour, we can work on composition. We can make sure that it looks beautiful in situ as well, which is not always possible with natural materials.” ...