The most colorful of all may just be rainbow obsidian, which features an array of iridescent colors, including shades of green, purple, and blue ... obsidian is both rock and glass.

The Google Pixel 9a colors have leaked, and the device will come in four colorways — Obsidian, Porcelain, Peony, and Rock ...

Snowflake obsidian is a form of volcanic glass that features white or grayish “snowflake” shapes made of embedded cristobalite. These pretty patterns are not artificially added as a cheap ...

Obsidian is a shiny black rock found in mountain areas ... Enter the cave below the Blue Obelisk at 27.8 Latitude and 33.0 Longitude, and you will find more obsidian covered in snow here.