obsidian

Perlite, obsidian and pitchstone are volcanic glass having the same compositions commonly with rhyolite as well as andesite and basalt.

The ancient weapon was crafted from obsidian.

The obsidian mirror had a smooth, reflective surface.

Archaeologists discovered obsidian tools at the excavation site.

The jewelry was adorned with a shimmering obsidian gem.

Legends say that obsidian can ward off negative energy.

The obsidian statue depicted a mythical creature.

The artist used obsidian as a medium for sculpting.

The sharp edges of obsidian make it useful for cutting.

Obsidian is formed from volcanic lava cooling rapidly.

Many cultures consider obsidian to have spiritual significance.