Stone Type: Forest Green Helenite. Stone Origin: Skamania County, Washington, USA. Metal: Solid 925 Sterling Silver w/ Rhodium Finish. Helenite is a gemstone that resulted from volcanic ash and rocks, and is also referred to as emerald obsidianite, Mount St. 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. About Us: We are a family-owned and operated business based in San Francisco. We attend jewelry trade shows across the nation. Our store is located at 914 Grant Ave, San Francisco, CA 94108. Thank you very much and best wishes! This item is in the category “Jewelry & Watches\Fine Jewelry\Jewelry Sets”. The seller is “twankeeco” and is located in this country: US. This item can be shipped worldwide.
- Ring Size: 6
- Modified Item: No
- Country/Region of Manufacture: United States
- Main Stone: Helenite
- Brand: Twan Kee Jewelry Manufacturer
- Metal: 925 Sterling Silver
- Type: Jewelry Set