Our premium bright fire rated flame glass crystals are the best you can buy. When used with any one of gas burners in your outdoor fire pit or indoor vented fireplace you will have a safe and memorizing fire display. Our glass is a great alternative to old fashioned vented gas logs. It will brighten up what was a dark and dingy fireplace. When used in your outdoor fire pit you will have the best looking, jaw dropping display of fire dancing on glass. Our flame glass is safe to handle and will not melt, pop, or degrade in anyway. Our glass is designed for the high temperatures. Typical installation is to place one of our flame burner pans on the bottom of the fireplace or any one of our burners in your fire pit and then cover the burner with 2" of our glass crystals. As the gas comes up through the glass it will ignite on top of the glass. What does 1 pound of our flame glass crystals look like? 1 Lb is enough to fill a 12 oz soda can. Here are some examples of the amount of our fire glass crystals required for various fire pits and vented fireplaces. An 18" diameter fire pit 2" deep requires 30 lbs of glass. 24" diameter fire pit requires 50 lbs. 30" diameter fire pit requires 70 lbs. 36" diameter requires 100 lbs. An average fireplace measuring 24" across the front requires 30lbs of glass. A 30" Fireplace 40 lbs. 36" fireplace 60 lbs. 48" fireplace 100 lbs. But our glass is not just for fire pits and fireplaces, use it in a fish aquarium, fill a flower vase, or float a votive in a bowl of our glass. Some of our customers have even used the glass as part of a center piece at weddings! SEE OUR OTHER LISTINGS FOR 1/2 LB, 4 Lb, 10 LB and 30 LB INCREMENTS. The larger the quantity the lower the price per lb.