Large vintage pendant showcasing a hand-carved Rainbow Calsilica 'sun face' uniquely set in a custom Sterling Silver mounting. Elevate your jewelry collection with this stunning piece that embodies both elegance and artistry. Stamped '925' on the back of the bale, this circa 1990s pendant weighs approximately 19.00 grams and measures approximately 55 x 38 mm including the bale, which can accommodate up to a 9.5 mm chain. This beautiful pendant has been cleaned but not polished, displaying a light patina that perfectly accents the colors of the gemstone, and is in very good condition.

Rainbow Calsilica, also known simply as Calsilica, is a striking opaque material celebrated for its vibrant, multi-layered bands of color, which can include hues of blue, green, yellow, orange, red, black, and sometimes even pink or purple. While initially presented as a natural stone mined in Chihuahua, Mexico, extensive testing has revealed it to be a man-made composite. It consists primarily of powdered carbonate rock (calcite), silica, artificial coloring pigments, and a plastic-like stabilizing agent, often resembling paraffin wax. Despite its artificial origin, Rainbow Calsilica is highly sought after for its bold appearance and is commonly cut into cabochons, beads, and carvings for jewelry and decorative purposes. Its unique visual appeal makes it a popular choice for designers seeking a colorful and distinctive material.