- Jun 3, 2020
Helenite is a man-made glass made from the volcanic ash of Mount St. Helens, and is usually marketed as a gemstone. It is also known as Mount St. Helens Obsidian, Emerald Obsidianite and Ruby Obsidianite. It was accidentally created at first when the workers from the Weyerhaeuser Timber Company were attempting to salvage equipment damaged after the volcanic eruption. The jewelry companies reproduced the glass by melting the volcanic ash at high temperatures. It is considered as an inexpensive alternative to the naturally occurring green gemstones like Emerald and Peridot.