Amazon.com Product Description The vivid aqua blue color of this faceted apatite gemstone automatically draws the eye, making this a lovely focal piece for a pendant or pin. The 6x4mm oval stone has a checkerboard faceted cut and a weight of .43 carat. With a hardness of 5 on the Mohs scale, apatite must be set and worn gently. Clean it using mild soapy water and avoid steamers and ultrasonic cleaners since this stone is heat and shock sensitive.
