The structural and industrial materials of California (1906)
Aubury, Lewis E., b. 1862 · Sacramento, W.W. Shannon, Superintendent State printing · leaf 301
larly beddedlayers of the material, with occasional narrow, conformable seams, from1 to 2 inches wide, of a dark brown siliceous shale. The face of thequarry is about 30 feet high. This material is used as a boiler and pipe covering; as furnace lining,by adding some gypsum as a hardening… … ]LL. Nu. V2r>. (^lAltliV OF INFfSORIAL EARTH .VV LOM P()( , SANTA RAKHAKA (OIXTY.
Building stones · Portland cement · Clay · Mines and mineral resources
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