Beautiful high quality black tourmaline specimen from Erongo Namibia Africa 
These specimens have different features such as included with halite opal, and other mineral inclusions. Some have record keepers and etching along the crystal faces. 
These are always one of my favourites, super powerful at removing toxins from the body and mind 
This specimen is 
Weight-100 grams 
Size- 1 inch by 1.5 inch