top of page
Become A Member For Free Here
Gneiss
Gneiss is a foliated metamorphic rock identified by its bands and is common and widely distributed type of metamorphic rock. It is formed by high-temperature and high-pressure metamorphic processes acting on formations composed of igneous or sedimentary rocks.
Colors It Comes In - White, Gray, Pink, Black, and Red
Fracture Pattern - Shear sliding
Shape - Variety of shapes and sizes
Luster - Shiny, Sparkly
Texture - Coarse-Grained, Interlocking
Where It Can Be Found - Commonly found in the cores of mountain ranges and in Precambrian crystalline terranes.
Hardness On The Mohs Scale - 6 To 7 Out Of 10
bottom of page