Onyx is a semi-precious variety of silica minerals, made up of quartz and moganite. It is formed mainly in the gassy cavities of lava, in which some the primary sources come from Brazil, India, Hawaii, Madagascar, Indonesia, Yemen, Uruguay, Germany and parts of the United States. It has sparkly translucence that is unmatched by any other stone. It looks like a gemstone, with wavy bands of amber, ivory, and white fused together in a single, fluid pattern. When backlit, onyx radiates a soft, ethereal light. Onyx exudes a royal and striking appearance.