Searching for Beads?
New and used Gemstone for Obsidian in the UK at the best prices
To find out more about Beads, click on the 'view arrow' next to each item below. A new window will open and you'll be able to get yourself a real bargain.Obsidian is a type of naturally occurring glass, produced by volcanoes (igneous origin) when a felsic lava cools rapidly and freezes without sufficient time for crystal growth (see glass transition temperature). It is commonly found within the margins of felsic lava flows, where cooling is more rapid. Because of the lack of crystal structure, obsidian blade edges can reach almost molecular thinness, leading to its ancient use as arrowheads, and its modern use as surgical scalpel blades. While a rock like basalt is dark because of ferromagnesian enrichment, despite its dark color, obsidian consists mainly of SiO2 (silicon dioxide), 70% or more. Obsidian is mineral-like, but not a true mineral because it is not crystalline. Courtesy of Wikipedia
|
Search ebay directly to find the exact item you're looking for: |
| Description | Price | Ends | ||
| 3 X BEAUTIFUL LARGE GEMSTONE FOCAL PENDANT BEADS | £4.99 | 28 January @ 21:26:45 |
 |
|
Search ebay directly to find the exact item you're looking for: |
