California Granitic Rock

Calkins and dallas l.

California granitic rock.

Granite is thought to form as hot fluids from deeper in the mantle rise and trigger widespread melting in the continental crust. Granitic rocks of the yosemite valley area california by frank c. Peck in geologic guide to the merced canyon and yosemite valley california california division of mines and geology bulletin 182. It forms from the slow crystallization of magma below earth s surface.

Easton in a bay area street paving and construction firm known as easton and wilson. Aromas research technical services. Based in watsonville calif the firm works with contractors and supplies them aggregate ready mix concrete hot mix asphalt emulsions road oils stucco plaster granite countertops and sealers to name a few. Granites can be predominantly white pink or gray in color depending on their mineralogy the word granite comes from the latin granum a grain in reference to the coarse grained structure of such a completely crystalline rock.

This is also called a plutonic rock. Granite is a light colored igneous rock with grains large enough to be visible with the unaided eye. Porter wilson was born in san francisco in 1866 graduated from mit with the class of 1890 and returned to california where he partnered with kimball g. Granite rock company was founded on february 14 1900 by arthur roberts a r wilson and warren r.

Granite is composed mainly of quartz and feldspar with minor amounts of mica amphiboles and other minerals this mineral composition usually gives granite a red pink gray or white color with dark mineral. Concrete building materials contracting construction services.