Natural Piezoelectric Turquoise Small Octagonal Cut

✦ Gemstones ✦     Natural Piezo Turquoise     Turquoise is one of the oldest gemstones and is highly prized for its striking blue-green hue and rich history across cultures. While natural turquoise is prized for its aesthetic value, its lesser-known piezoelectric properties have attracted even more attention. These properties, while not often discussed, add another fascinating layer to understanding this gemstone.   Turquoise is a phosphate mineral composed primarily of copper and aluminum, which gives it its distinctive blue-green hue. It is typically formed in arid climates where groundwater seeps into rocks rich in copper, aluminum, and other minerals.   The gemstone has a Mohs hardness of 5 to 6, making it relatively soft compared to other popular gemstones, such as diamond or sapphire. Because of this, turquoise is often stabilized or treated to enhance its durability in jewelry.   Natural turquoise can range in color from pale blue to dark green…