Applying flint and steel to a quark chest causes the server to seize up for about 2 seconds but does not set the chest on fire. Fire-spread immediately destroys the chest, but dumping the contents. Vanilla chests being non-flammable, this might be in error. It would be odd if it was an unlisted intended feature, but the seizing server and instant chest deletion makes that questionable. Tested with birch and spruce chests in 1.16.5.

Chests are still flammable as of 1.18, quark 3.2-358

Vanilla chests don't burn, need to test if this is cross mod or solely quark.

Couldn't reproduce in 1.16.5 r2.4-311