Aenigmatite
Pantelleria Island, Trapani Province, Sicily, Italy
Enigmatite: 1.45 mm biterminated, black, shiny prism lying on the matrix, a 5.5x3.5 cm greenish pantellerite, self-collected in December 1999.
Nikon Coolpix 4500 camera with Raynox MSN-500 lens. Stack of 82 images.