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Why don’t rocks burn? - MSN
Metamorphic rocks that are formed from igneous rocks won’t contain the combustible elements – the ones that burn ...
Nature2y
Metamorphic diamond from the northeastern margin of Gondwana: Paradigm shifting implications for one of Earth’s largest orogens | Articles - Nature
Metamorphic rocks form when rocks are subjected to high temperatures or pressures. Sometimes small diamonds also form under these conditions, but so far such metamorphic diamonds have only been ...
The Conversation2y
Why don’t rocks burn? - The Conversation
Metamorphic rocks that are formed from igneous rocks won’t contain the combustible elements – the ones that burn ... Anthracite is the hardest type of coal.