Erongo aquamarines are treasured, but when you can get the blue atop a black tourmaline - that is a rare combination! This is a handsome and robust, lustrous, jet black Schorl Tourmaline crystal with a single, nicely formed termination from the Erongo Mountains of Namibia. This 7.3cm long crystal displays very light striations on its super lustrous faces and it is topped by a 3.4cm doubly-terminated, well-formed, medium blue, translucent Aquamarine crystal, for a great composition! This is a great small cabinet pegmatite combination specimen from Erongo at a great value! Ex. Shields Flynn collection with label.