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Tempered Fire Glass - 1/2" Interstellar Gray Reflective

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Tempered Fire Glass - 1/2" Interstellar Gray Reflective

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Rocks and stones look nice in your gas fire pit — but nothing catches the eye like Interstellar Gray Reflective Tempered Fire Glass by Celestial Fire Glass. Beneath a dancing fire, it shimmers and sparkles like a star-speckled sky.

When it comes to shine, Celestial Fire Glass delivers in spades. Our tempered glass is never tumbled, so it retains a smooth, ultra-reflective surface. We've added a mirror coating to pump up the shine even more. Ordinary rocks simply don't hold a candle to this premium fire glass. Use it with your do-it-yourself project to totally transform the look of your fireplace or fire pit.

The Celestial difference:

  • Superior strength and durability. While inferior brands of fire glass may fade or discolor, ours is engineered to provide outstanding resilience.
  • Powerful reflective properties. Most fire pit glass is tumbled, which makes its surface dull. We use an exclusive process to keep our Interstellar Gray Reflective glass smooth, while retaining the mirrored coating on the back side. Talk about shine!
  • No chemical odors. Worried about stinky fumes that pollute the air? You won't smell a thing with high-quality, nontoxic Celestial Fire Glass.
  • Use throughout your home and yard. It's not just for fire pits! DIY-ers scatter it in outdoor water features or pour some into your favorite clear vase.
  • Mess-free jar container. Your fire pit glass arrives in a sturdy plastic jar that's much easier to manage than a bulky plastic bag. It even has a handle!
  • Free Shipping. All orders ship free via USPS Priority Mail. Receive your fire glass in 3 days or less!


  • Size: 1/2" (10mm thick)
  • Finish: Reflective
  • Weight: 10 lbs. (4.45 kg.)
  • Coverage: 200 Cubic Inches
  • Warranty: Lifetime Limited Warranty

California Proposition 65
Based on tests performed by an independent lab this fire glass does not contain any chemicals that meet or exceed California Proposition 65 level of concern for their listed chemicals. More specifically, the amount of Chromium and Lead are well beneath the California Proposition 65 levels of concern.


Below are Google reviews from a few of our many past customers. We strive for exceptional customer service - and really appreciate that these wonderful people took the time to leave us a review on Google.