Inside the Obsidian

This is a piece of obsidian from my sister's rock collection. As kids, we used to collect a lot of Apache Tears, so obsidian has always been very interesting to me with its level of translucency when held up to the light.

 

I was hoping to showcase some of the fine, beautiful details within obsidian that are caused by its creation: magma cooled so rapidly it doesn't have a chance to form crystals - at least large ones - as seen in other igneous rocks that slowly cooled such as granite or diorite.

Done