The structural and industrial materials of California (1906)
Aubury, Lewis E., b. 1862 · Sacramento, W.W. Shannon, Superintendent State printing · leaf 307
et wide. The ore isbotli hematite and magnetite. The hanging wall is a dolomite, l>()undedon the north by granitic rocks. The foot wall is a body of syenite,about 150 feet wide, wliich forms the hanging wall of the Dick Turpinvein, containing very pure magnetite ore. In the same vicinity is… … ILL. No. Ii.i. IRON VELN, SAX UlS OHISIO COUNTV. Kingston Mountain and Resting Springs are also reported to containmagnetic iron ore. (See J. H. Crosman, IXtli Re]iort of the CaliforniaState Mining Bureau, jip. 2.)5 and 236; also Xlth ihid., p. 349.) SAN DIEGO COUNTY. • A littl. nortli of tlie Gold…
Building stones · Portland cement · Clay · Mines and mineral resources
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