Asked by: Marinella Llandera
asked in category: General Last Updated: 12th May, 2020

Will stones explode in a fire?

Air- and water-permeable rocks are much more likely to explode than dense non-permeable rocks. This is because air or water is absorbed by the rock when it is cool, and then the air or water molecules trapped inside the rock expand faster than the solid rock when it heats up next to the fire .

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Simply so, can rocks explode in a fire?

Rocks can explode in a campfire because of rapid expansion due to trapped water inside the rock, or through uneven heating. Although virtually all rocks have some amount of water inside them, porous and more permeable rocks have more water and are thus more dangerous inside a fire.

Additionally, does flagstone explode in fire? Secondly the type of rock matters, layered rocks such as sandstone are much more likely to split and perhaps explode because of the weaker bonds between their layers. When in doubt, you can build your fire on top of the rock the first night and heat it up safely covered to drive out whatever moisture may be trapped.

Hereof, what happens if you put a rock in a fire?

Nearly any kind of rock has the potential to explode - especially if it is porous and wet. When wet rocks heat up, the trapped air and water expand very quickly and forcefully break the rock apart, sometimes causing it to explode.

What temperature do rocks explode?

90 to 200 degrees C (300–400 degrees F) might be a good lower limit of the explosion temperature. On the other hand, it is possible for rocks to explode from freezing if water is present.

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