The countertop has quartz, plagioclase feldspar, potassium feldspar and biotite? That is likely granite. At another house it is all calcite...now that's marble. However, the people who study how these ...

These formations occur in succession within the same drilling profile. The minerals constituting garnet bearing amphibolite include amphibole, garnet, plagioclase, kaolinite, and opaque minerals.

Here, the capability of the software has been applied to plagioclase crystals, whose textural and chemical complexities are faithful recorders of the physical and chemical conditions and processes ...