Midwest Hearth100% Natural Lava Stones for Gas Fire Pit and Fireplace (X-Large (3"- 5"))

I didn't want to spend the money for these lava rocks. You can get your typical red jagged lava rock pretty cheap, but I generally don't find this color, size, or shape locally. So I went ahead and spent the money, and happy I did. These rocks look fantastic in the fish tank, especially against a light sand substrate. Added bonus is that the pours promote the growth of beneficial bacteria. They do come out of the bag extremely dusty and look much lighter. I gave them a quick rinse in tap water and put them right in the tank.

Tumbled to a smooth surface. Constant color. Look good in the fire pit. A bit pricey but good quality.

Wanted some black lava rocks for the bottom of my firepit. Didn't want them to be too small because it would make cleanup a mess. These 3-5" are just the right size and I love the tumbled smooth look. They arrived fast and were a fair price

I bought these 3-5” lava rocks to use in a birdbath and the birds love them!So do the chipmunks!You can buy cheaper rocks but I got these because I wanted to offer my critters a maximum amount of grip to insure that they don’t fall in and drown.These rocks are spectacular and definitely worth the money!!The water pump is solar powered with a battery backup and the bowl is a porcelain serving dish, all bought here on Amazon.

After trying river rock and road side granite I broke down and purchased these nicely uniform volcanic rocks. They fit well into my sauna stove, heat up fast and retain heat and moisture. No more popping apart and crumbling. Purchased 1 bag each of small and medium.