1. metamorphic - Noun
2. metamorphic - Adjective
Subject to change; changeable; variable.
Causing a change of structure.
Pertaining to, produced by, or exhibiting, certain changes which minerals or rocks may have undergone since their original deposition; -- especially applied to the recrystallization which sedimentary rocks have undergone through the influence of heat and pressure, after which they are called metamorphic rocks.
Source: Webster's dictionarymetamorphic stage Source: Internet
marble is a metamorphic rock that takes a high polish Source: Internet
According to geologist Stefan Schmid, because the Western Alps underwent a metamorphic event in the Cenozoic Era while the Austroalpine peaks underwent an event in the Cretaceous Period, the two areas show distinct differences in nappe formations. Source: Internet
Alteration of basalt Metamorphism Basalt structures in Namibia Basalts are important rocks within metamorphic belts, as they can provide vital information on the conditions of metamorphism within the belt. Source: Internet
Biotite is also useful in assessing temperature histories of metamorphic rocks, because the partitioning of iron and magnesium between biotite and garnet is sensitive to temperature. Source: Internet
A wide variety of materials were used to sculpt chacmools, including limestone and hard metamorphic and igneous rock types. Source: Internet