Obsidian Teardrop MediumObsidian Teardrop Medium. Inspired by the earth's layers. Combines a deep matt black with seams of muddy ochre, as you would see in a lava flow. Lava Glass is named after the natural volcanic black glass material obsidian. An original piece of glass art. Excellently suited as collector's item or interior design accent. Handblown by award winning glass artist Lynden Over in his Lava Glass Studio in Taupo, New Zealand. Each piece is signed and dated by