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Q&A

Should I be careful to use only dry rocks while building a campfire?

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Possible Duplicate:
How to avoid exploding rocks

If I build a campfire with damp rocks, is there any possibility of the rocks exploding? I had this happen once while burning trash, because the moisture in the rock swells as it heats and the rock pops like popcorn. Is there any chance that this might happen if I use damp rocks to line and/or floor a campfire?

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This post was sourced from https://outdoors.stackexchange.com/q/1407. It is licensed under CC BY-SA 3.0.

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1 answer

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Rocks wet or dry can violently fracture if exposed to enough heat due to cavities.

The type of rock may actually have more to due with possible explosions than the moisture level. Meaning igneous and metamorphic are non permeable, but can contain natural oil or flint which can be bad. Sedimentary limestone, shale, sandstone would have a better chance of explosion due to water, but see below.

The best answer to your question would be, use soil not rocks.

And, normally a low impact campfire should not have the heat needed.

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Why does this post require attention from curators or moderators?
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This post was sourced from https://outdoors.stackexchange.com/a/1408. It is licensed under CC BY-SA 3.0.

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