Fire glass

The sizes range from approximately 1⁄4 to 1 inch (6 to 25 mm), and is made in various different colors, sometimes with reflective coatings.

[citation needed] Broken standard sheets of tempered glass are typically sifted to remove any sandy, small, or very sharp pieces of glass, while the rest may optionally be lightly tumbled to remove the sharp edges.

U.S. companies will also import fire glass from China by the container, as it is not made in the U.S. in bulk.

[citation needed] The glass itself is unchanged by the fire, but accumulates dust and black soot produced by the burning hydrocarbons.

[4][5] One unique property of using fire glass in a fireplace compared to using ceramic logs or other materials is that it can provide a wide range of color options available.