Rock types that have undergone changes in mineralogy, texture, and/or chemical composition in a substantially solid state as a result of heat and/or pressure.


Gneiss, seen in the tunnel, is one of the new metamorphic rocks in BetterGeo.

Pages in category "Metamorphic rocks"

The following 4 pages are in this category, out of 4 total.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.