Quartz is found in all mineral environments and in an infinite range of colors. The most common are white, purple, brown, and colorless. Through the radiation process, colorless Quartz crystals obtain green shades and are called "Green Gold". This quality of Quartz is rarely found in Brazil. Most varieties have a vitreous shine and they can be transparent, translucent, or opaque.
    Glass has been broadly used to imitate the colorless Quartz. However, the gaseous bubbles present in its interior distinguish it decisively from Quartz.
    Characteristics:

    If you wish to receive further information on the production of Quartzes at Duarte & Bastos, send us an e-mail or get in touch with our staff in Brazil.

    At Duarte & Bastos, the client will find a great variety of Quartzes in their natural white and green shades (Green Gold), treated or bombarded, in rough and polished forms. With a stock composed of polished stones in several shapes and sizes, calibrated and loose, we are certain to promptly attend all the needs of our clientele.

Mohs' Hardness: 7
Relative Density: 2.65
Refraction Rate: 1.544 - 1.553