Here's a great twinned black tourmaline (schorl) specimen from Namibia with an interesting variation on the usual trigonal termination; here the terminations of the large crystal are feathered, splitting up into hundreds of tiny terminated points. The color is a rich jet black, and the sides of the crystal (which is double terminated) are highly lustrous and deeply striated. This is a great specimen of this lovely mineral, in a nice hand size, and very attractive as well. No damage.