Mineraalassemblages
Mineraalassemblages are the characteristic sets of minerals that co-occur in a rock at a given time and under specific physical conditions. They serve as the mineralogical fingerprints of how a rock formed and how it was subsequently altered. An assemblage is more than a simple list of minerals; it reflects the paragenetic sequence—the order in which minerals crystallized, grew, or re-equilibrated during geological processes.
Assemblages occur in various geological settings. Primary assemblages form during the crystallization of igneous rocks or
Common examples include metamorphic facies assemblages: greenschist facies with chlorite, epidote, albite, and quartz; amphibolite facies
Determining mineral assemblages relies on petrographic microscopy, X-ray diffraction, and electron probe techniques. They are used