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Azurite Gemstone Information. Azurite is a rare variety of gemstone-quality copper ore. Azurite is one of two basic copper carbonate minerals (malachite is the other). Azurite is rarer than malachite and is considered more valuable. Azurite gets its name from the Persian word 'lazhward', which refers to its distinctive, vivid blue color.
Jade, known as 'yu' in China, is a gemstone that is used as both an ornament and as jewelry. There are two types of jade stone that exist. These are composed of different silicate minerals. The first type of jade stone is nephrite. The more iron that the nephrite contains, the greener in color it appears.