Chinese Writing Stone Necklace

I am so happy with this piece.  It's very striking and truly one of a kind! The other name for this stone is Porphryl, which is a limestone matrix with Andalusite crystals. The pendant itself measures 2 1/4" long and 1 1/2" wide.  The actual stone is 40 mm x 30 mm.  It hangs from a 21" sterling oval link chain, and the chain is embellished with thoy ebony beads that are inlaid with tiny ovals of mother of pearl.  There is also a oval mother of pearl cabochon on the pendant.