BLUE RIDGE BRAND LAVA ROCK - Blue Ridge Brand offers professional grade lava rock, for both residential and commercial use, at an affordable price. Blue Ridge Brand Lava Rock is available in 3 different sizes ranges. Small - 3/4 to 1 Inch, Medium - 1 to 2 Inch, and Large - 2 to 3 Inch. FIRE PIT ROCK WARNING - All forms of volcanic rock have the ability to trap moisture and fracture or pop upon rapid heating. Lava stones are not recommended for use in a fire pit. If using lava pebbles in any heated application, the heat must be applied gradually and at a low level to release any internal moisture slowly to avoid potential steam buildup inside of the rock. LANDSCAPING, AND MORE - Blue Ridge Brand Lava Rocks are a great addition to garden landscapes, planter beds, and other landscaping rock applications NATURAL TUMBLED LAVA PEBBLES - Blue Ridge Brand Lava Rocks are naturally sourced volcanic rock that is then tumbled to create a beautiful, uniform look. ECONOMICAL - Blue Ridge Brand offers unmatched pricing and quality for any size project. ATTENTION If using volcanic rock in a heated application, allow the lava rock to heat up slowly before reaching full temperature. In rare instances, wet lava rock can trap moisture and fracture or pop upon rapid heating. For your safety, we do not recommend using lava pebbles in a fire pit. Due to the natural nature of lava pebbles, when they are exposed to humidity, they can turn darker shades of gray and can appear black. At times, lava pebbles can pick up moisture in the air even when they have not been exposed to rain or other water sources. The darker the lava pebble, the more water or moisture it has retained. A dry lava pebble will be light to medium gray in color.