Designed by
Title
Gneiss rock - colorful graphic pattern or background #81491266
Description
Gneiss & x28;pronounced & x22;nice& x22;& x29; is a metamorphic rock consisting mostly of quartz and feldspar and showing distinct layering or banding. The layering of a gneiss may be weak or well-developed and consists of varying concentrations of biotite, garnet, hornblende, mica, and other minerals. Gneiss usually has colorful layers and veins.