STONE: Metallic-sheen Obsidian
METAL(S): Sterling silver in pendant, chain is rhodium/mixed metals (not suitable for nickel allergies)
LENGTH: Short (above bustline)
CHAIN AND CLOSURE: Lobster claw closure on a ball chain
Obsidian comes from volcanoes, and is actually a glass! It cleaves SO sharply that it has been used as weaponry for a LONG time.
Sometimes, obsidian cools so rapidly that the volcanic gasses don't have time to escape, getting trapped as tiny bubbles.
When this happens, they appear as a metallic sheen. This sheen works like any stone flash; the light has to pass through the bubbles at just the right angle for the effect to work.