Transactions . Fig. 3. .•».» --•7 i ^ O Tlir; .2 CM Fig. 3 and 4.—Opposite sides of specimen from Sexton Peak, Oregon, SHOWING SHARPLY MARKED BAND OF CHROMITE (DARK) IN OLIVINE (lIGHT). NaTURALSIZE. Their edges are generally less sharply marked, and the gradation is ac-companied by much irregular interfingering of ore and country rock,as shown in Fig. 4. Many of the orebodies are comparatively smooth,especially in sheared serpentine, but others are extremely irregular, asin Fig. bd. J. S. DILLER Size 111 The size of cliroinitc bodies ranges from a small nodule to a masscontaining many
Transactions . Fig. 3. .•».» --•7 i ^ O Tlir; .2 CM Fig. 3 and 4.—Opposite sides of specimen from Sexton Peak, Oregon, SHOWING SHARPLY MARKED BAND OF CHROMITE (DARK) IN OLIVINE (lIGHT). NaTURALSIZE. Their edges are generally less sharply marked, and the gradation is ac-companied by much irregular interfingering of ore and country rock,as shown in Fig. 4. Many of the orebodies are comparatively smooth,especially in sheared serpentine, but others are extremely irregular, asin Fig. bd. J. S. DILLER Size 111 The size of cliroinitc bodies ranges from a small nodule to a masscontaining many thousands of tons.* The largest body of chrome oremined recently in the United States was 150 ft. (46 m.) long, 40 ft. (12 m.)wide, and 54 ft.(16 m.) high. It occurred in the Castle Crags mine onLittle Castle Creek, in Shasta County, Calif., and yielded about 12,000 OF CHROMITE DEPOSIT^ /
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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries
