Arrowhead Pendant, Black Leather Lace necklace

EUC. Here's a nice arrow-shaped polished rock pendant strung with assorted beads. The necklace is a black leather string. The necklace length is approx. 18" necklace, and the pendant is 1.25." I'm not an expert so I can't identify the type of beautiful stone from which the arrow pendant is made. The stone is black with gold flecks. I think it may be a black agate with pyrite flecks. There are wavy lines on the back side that look like an agate.