Midwest HearthLava Rock for Fire Pits and Gas Log Sets, Black 5/8" to 1-1/2" (10-lb Bag)

We used a 19in pan, painted it with high heat paint, and then used 20lbs of lava rock to fill pan to this effect. The rocks were a variety of sizes, I definitely would not want to go smaller, and 2 bags filled the pan in nicely. Yes, there is some dust and small bits, but it is lava rock and will naturally break up somewhat in processing. After the fire is off, rocks still stayed warm for a bit afterwards. (Enough to still roast marshmallows haha!) Worked very well for us overall!

Perfect to update my gas fireplace logs. I used it to cover the smaller ones

No sparks flying for us...works and looks great!

Just what I needed for my home fire pit.

I have owned quite a few gas fire pits in my life that have had lava rock in it. These rocks actually EXPLODE and fly across the patio, so forget sitting by the fire pit. They have left burn marks in my patio furniture covers and have hit family members. I urge you DO NOT BUY THESE!!!!

have used these all winter in my interior fireplace w/ great results.

Love this product. Black is so hard to find. Prompt delivery and just what I needed to fill in my existing flower beds. I just ordered 4 more bags!

perfect size lava rocks for fire pit

Incase like me it is important that it is black you should know that this is not all black. Rusty and even bright orange colours are in there too. At best 60% is black. The cost of black vs brown/orange is the issue. If you pay £35 for black you expect black. Photo in white box is this product. The photo in the bag is what it should be. BLACK.