Lapis lazuli is a millenary stone composed of 25% to 40% of lazurite, it also contains other minerals such as sodalite, hauyna, calcite and pyrite. It has a characteristic blue color and its name comes from the Arabic word used for the blue color. It is not considered a mineral but a rock instead. It […]
Stories about conquests, battles and empires are full of great individual feats and heroic group efforts. In addition to the conformation of monarchies and the imposition of one civilization to another, each one had a conception of beauty but always with precious stones and metals. The jewels of the Ottoman Empire are no exception. Also […]
