Mineral Examples of such minerals are malachite (green) and azurite (blue). In contrast, allochromatic elements in minerals are present in trace amounts as impurities. An example of such a mineral would be the ruby and sapphire varieties of the mineral corundum. The colours of pseudochromatic minerals are the result of interference of light waves. Examples include labradorite and bornite. In addition to simple body colour, minerals can have various other distinctive optical properties, such as play of colours, asterism, chatoyancy, iridescence, tarnish, and pleochroism. Several of these properties involve variability in colour. Play of colour, such as in opal, results in
The Malachite Box total circulation of about 37 million copies. "The Malachite Box" has been republished many times since then. The tales were translated into 64 languages, more than 250 editions in foreign languages were released. The list of languages include English, Hungarian, Italian, Bulgarian, Serbo-Croatian, Mongolian, Chinese, Japanese, Assamese, Kannada. Four stories from "The Malachite Box" were published in the 1943 Moscow magazine "Internatsionalnaya Literatura" in English and French. In 1944 the book was translated from Russian into English by Alan Moray Williams and published by Hutchinson. Bazhov did not know about this translation and found out about it accidentally. In the