There is nothing quite as enjoyable as having a campfire and sitting around it with family and friends. It’s one of those rare moments in life that give us the opportunity to disconnect and enjoy some real communication.
The last thing that we would want if we were in such a peaceful setting was to have a rock explode in our faces. Unfortunately, it could happen if you use a river rock when building a campfire ring.
It is a good idea to use rocks in the ring to contain the fire and keep it from getting out of control. That being said, if you are the one selected to choose rocks, avoid river rocks altogether.
According to Hunker, the primary reason why you would not use a river rock for a campfire is that it may contain water and they are porous. As the water heats, it creates steam and expands, sometimes resulting in the rock exploding.
River rocks may also experience thermal shock when they are heated by a fire. If the rock has a high level of quartz, which shatters easily, you would want to avoid the high temperature of a fire.
When the hot temperatures of fire meet the coldness of river rock, they can explode and fly in every direction. That could damage your eyes or skin, and many of us tend to be facing the fire, making it easier for it to happen.
There are other types of rock that are not suitable for use around a fire. This includes limestone, shale, pumice, and other natural rocks. If they are porous, you risk an explosion.
There are other rocks that are better for use around the campfire, such as slate. You should also position them so they are outside the bed of the campfire because even the best rocks can explode when they are heated.
One other reason to choose rocks carefully is because of pollution. Some gases that are trapped in the rock are something you would not want to burn. You may end up with a smelly fire if you are careful.
Campfires are a beautiful experience, so keep them beautiful by choosing your rocks carefully.