Basaltic Trachyandesite. This alteration increased the size of the mineral grains and segregated them into bands, a transformation which made the rock and its minerals more stable in their metamorphic environment. Sandstone. Gneiss can form in several different ways. Gneiss is a metamorphic rock form characterized by banding caused by segregation of different types of rock, typically light and dark silicates.Rather than an indication of specific mineral composition, the term is an indication of texture. corundum gneiss with sapphire; Gneiss with foliation; Gneiss is a foliated metamorphic rock that is a common distribute type of rock high-grade regional metamorphic approaches from pre-current formations that have been initially both igneous or sedimentary rocks. The most common path begins with shale, which is a sedimentary rock. Get to know information about Gneiss texture and also know all about Gneiss Color. Coal. References. (1983). The "gneissic texture" … Get to know information about Gneiss texture and also know all about Gneiss Color. Gneiss is widely used as a dimension stone. Quartzite. It is a high-grade metamorphic rock in which mineral grains recrystallized under intense heat and pressure. Tomkeieff, S. I. Metamorphic Rocks + Schist. Marble. Wall made of gneiss blocks in Sweden. It has a nice combination of hardness and durability with beautiful texture. Gneiss. 1. Even the rocks that do not seem to have a banded appearance do have it when looked from a different direction. Regional meta… Fossil Rocks + Novaculite. It has a glorious banding which is apparent on microscopic scale and hand specimen. Gneiss usually forms by regional metamorphism at convergent plate boundaries. Home. Igneous Rocks-Shonkinite. Comendite. Dictionary of Petrology.