P7921 Mt. St. Helens Helenite Sterling Silver Pendant

Helenite is a gemstone that resulted from volcanic ash and rocks, and is also referred to as emerald obsidianite, Mount St. Helen obsidian. The volcano erupted on May 18, 1980, and ejected igneous rock from 10-20 miles underground. The fury of the volcanic eruption is a wondrous occurrence in nature. The beauty that has been created from it—Helenite—is a fantastic thing to hold. Helenite is made by fusing this material at 2700° F, which we facet and polish. The composition of Helenite includes Si-60.50%, Al-16.60%, Fe-6.02%, Ca-5.36%, and other elements. Rhodium is a precious metal, and a member of the platinum family. Properties include hardness greater than Palladium and Chromium, non-oxidation, melting point of 3567°F, and resistance to most acids and bases. Rhodium electroplating is used—especially on expensive jewelry—to provide a surface that will resist scratches and tarnish, as well as give a white reflective appearance.