Natural Blue Obsidian (raw) Obsidian is a very special stone. It is not a true mineral. It is actually a volcanic glass that forms when molten lava cools too rapidly to crystallize. It consists mostly of Silicon Dioxide.
Magical stone, found only in one place in the Caribbean (Dominican Republic) in an inactive volcano. This is a stone of the ocean and sky, it is the stone that Edgar Cayce predicted would be discovered with special healing qualities.
Bright Dioptase crystals that appear to be stalactitic in form but are actually overgrown on needle-like crystals of an unidentified brown mineral. The specimen is columnar in form with bright sparkly crystals on all sides