Posted by Rasmussen Gems and Jewelry LLC
Quartz is a very common mineral in the earth’s crust (second to feldspar in abundance), and comes in a variety of colors. Seen here is a cluster of quartz crystals. Quartz is silicon dioxide (SiO2) and is the primary mineral in sand. Quartz has a hardness of seven on the Mohs scale which makes it a good gemstone for all styles of jewelry. In addition, quartz comes in a wide variety of colors. This months’ blog will be devoted to the faceted varieties.
Amethyst is the highest valued form of quartz. Amethyst is purple and the color is produced by the presence of iron in the crystal. In ancient times an amulet of amethyst was thought to prevent drunkenness. Some amethysts will pale in sunlight.
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