- Helenite
Helenite, also known as Mount St. Helens obsidian, emerald obsidianite, and ruby obsidianite, is a synthetic
gemstone made from the fused volcanic rock dust fromMount St. Helens , an American volcano located in the state ofWashington . Helenite was made from the fusing of rock emitted from Mt. St. Helens during the catastrophic May1980 eruption. In spite of its nicknames, helenite is not a trueobsidian .Helenite comes in various
red andgreen varieties and is a popular substitute gemstone foremerald andruby , although it has become popular in recent years in its own right withjewelry aficionados and gem collectors.External links
* [http://www.enchantedlearning.com/jewel/glossary/indexh.shtml All About Jewels: Illustrated Dictionary of Jewelry]
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