Blue tourmaline Crystal - Height: 30 mm - Width: 12 mm- 10 g - (1)

Blue tourmaline, also known as indicolite, is a rare and striking variety of the tourmaline mineral group characterized by its deep blue hues, ranging from sky blue to vivid indigo. This crystal specimen, measuring approximately 30 mm in height, showcases the typical elongated prismatic crystal habit of tourmaline, often prized in both jewelry and mineral collections. Tourmalines are boron silicate minerals known for their complex chemical composition and ability to display a wide range of colors. Blue tourmaline's attractive color is due to trace amounts of iron and titanium. Due to its clarity and color, specimens such as this one are valued by collectors and lapidaries. Beyond their beauty, tourmalines are also appreciated for their pyroelectric and piezoelectric properties, although these are more relevant in scientific contexts than in everyday use.