Moonstone is a variety of feldspar that gives off a shimmer, known as schiller or adularescence. Moonstones come in a variety of colors, ranging from clear to gray, brown, yellow, green, or pink, and it may be translucent or transparent. |
The highest quality moonstones have a bluish sheen, a truly colorless body, and perfect clarity. Moonstones are usually cut in a smooth-domed cabochon shape to maximize their shimmering effect, although they are sometimes carved to show a man-in-the-moon face.
Moonstone tends to chip or crack rather easily. Take care to protect it from scratches and blows.