always the grow upon a base, and the purple has greater intensity in their tips. It is cut into several shapes, such as oval, pear shape (teardrop), rectangular, stepped facets, cabochon, and other formats used in colorful stones. It is shiny and has good transparency.
    In the past, Amethyst was frequently imitated through the use of colored glass. Nowadays, it is produced synthetically at a cost very similar to that of the natural gem.
    Characteristics:

To receive further information on the production of Amethysts at Duarte & Bastos, send us an e-mail or get in touch with our staff in Brazil.

    At Duarte & Bastos, clients will find an abundance of natural Amethysts of extraordinary beauty, in several shapes and sizes, both calibrated and non-calibrated. We offer stones in rough and polished form, and feature a great variety of shades of purple.
    The Amethyst is the most highly valued stone of the Quartz group, not only for its purple color, but also due to supernatural forces attributed to it, such as luck and protection. Its crystals

Mohs' Hardness: 7
Relative Density: 2.63 - 2.65
Refraction Rate: 1.544 - 1.553