I have a flat of stones that were recently identified by an "expert" (he should know - he's been in the industry for over 20 years and owns mines). The flat is labeled "Namibia black tourmaline" and I have searched the web for years and have never seen anything comparable to them. Anyway, they were identified as aphrizite (NOT schorl) and I was told that they are very rare. I've been doing research to learn the difference between schorl and aphrizite, without much success. Most references lump the two together under black tourmaline, and alibaba shows aphrizite as either a green mottled stone or black beads. The specimens I have are about an inch or less in diameter, shiny black crystals with beautiful facets and points. I have taken photos of them but it is difficult to capture the details of these beauties. Is there anyone who can help me learn more about aphrizite?