Fireworks Obsidian from Mexico (also known as Flower Obsidian) is a relatively rare form of volcanic glass that displays a multitude of small, chrysanthemum type bursts of red, pink and white on a black field.  Relatively soft but it still takes a great glassy polish to produce very lively finished cabs.

Origin: Mexico

Dimensions: 5" x 3.5" and is approximately 7.1 mm thick. Weight = 174 grams.

Not polished. Shown wet.  Known flaws are shown as white lines in the final picture frame.