There are many shades of obsidian in nature. The Weekend Challenge from GC and SueW, and their monthly color challenge for June, is the color Obsidian.
By coincidence, I was out in the yard yesterday morning rearranging some of the obsidian I’ve collected at nearby Glass Buttes. Here in Bend, Oregon, we recently had a huge storm with high winds, rain, and hail. My rocks all had a nice bath. 😉
Here are few portraits of obsidian rocks in my garden.
A piece of black obsidian in with the ice plants. I like to pick up pieces that have interesting textures.

Here’s a larger piece of black obsidian tucked in under the mint plants.
