Colombianite

Colombianite is often claimed to be a Tektite, similar to Moldavite, but it is actually not a Tektite as it was not formed from a meteorite impact. Instead it is what is known commonly as a pseudo-tektite - similar in appearance, but is instead from terrestrial origins, in this case ancient volcanic activity. These are ancient forms of Obsidian, some of the oldest skeletal traces of Obsidian in the world, as Obsidian will actually begin to crystallize over time and change form. Although it is a form of volcanic glass (Obsidian), it's appearance is quite different to the shiny, glossy forms of Obsidian we see on the market for the most place.