Decomposed granite Decomposed granite Decomposed granite is classification of rock that is derived from granite via its weathering to the point that the parent material readily fractures into smaller pieces of weaker rock. Further weathering yields material that easily crumbles into a mixtures of gravel-sized particles known as grus, that in turn may break down to produce a mixture of clay and silica sand or silt particles. Different specific granite types have differing propensities to weather, and so differing likelihoods of producing decomposed granite. It has practical uses that include its incorporation into paving and driveway materials, residential gardening materials in arid
Emery, Utah identify archaeological sites as Fremont, is not very different from that made by other Southwestern groups, nor are its vessel forms and designs distinct. What distinguishes Fremont pottery from other ceramic types is the material from which it is constructed. Variations in temper, the granular rock or sand added to wet clay to insure even drying and to prevent cracking, have been used to identify five major Fremont ceramic types. They include Snake Valley gray in the southwestern part of the Fremont region, Sevier gray in the central area, Great Salt Lake gray in the northwestern area, and Uinta and