The quicksilver resources of California . in the cracks, seams, and fissures of thesilicified material. The richness of the cinnabar ore is to agreat extent dependent upon the size of the cavities favorablefor deposition and consequently upon the compactness of thefissure-filling; hence rich ore bodies are principally found inthose parts where the fissure-filling has been crushed anddistorted. COST OF MINING AND REDUCTION. The cost of mining and reduction of quicksilver ores differsvery sensibly in the various mines. The nature of the groundis one great cause of this difference. In some mines
The quicksilver resources of California . in the cracks, seams, and fissures of thesilicified material. The richness of the cinnabar ore is to agreat extent dependent upon the size of the cavities favorablefor deposition and consequently upon the compactness of thefissure-filling; hence rich ore bodies are principally found inthose parts where the fissure-filling has been crushed anddistorted. COST OF MINING AND REDUCTION. The cost of mining and reduction of quicksilver ores differsvery sensibly in the various mines. The nature of the groundis one great cause of this difference. In some mines theground is such that little or no timbering is required. Inothers, the ground is so bad that the stopes have to be tim-bered and filled. In some mines the air is generally good,while in others the heat is so great that the men work underdisadvantage. The cost of timber and cordwood also varies very much, somedistricts being well provided with timber, while others are atconsiderable distance from the source of suppl)-. • I--?/ YTVTJOO. Geology by Win. Forstner, MAYACMAS D I—Sunrise. ) lo—Geyser, Sulphur, 2—Cloverdale. Il—Black Bear Group. 3—Mercury. 12—Pluton Den. 4—Manzanita. j 13—Clyde. 5—Albian. /? Cloverdale Mine. 14—Culver—Baer Group. 6—Mattole. 15—Rattlesnake. 7—Mount Vernon. 16—Tunnel Site. ) 8—Philadelphia. 17—Incandescent. - 9—Waterloo. J 18—Almaden. ) No. Name OF Mine. NO. OK MINE. 19—Mate. 1 29—Socrates. 20—Eureka Nos. i and 2. [Eureka Con. 30—Mercury. 21—Captain. f 31—Great Northern. 22- 123—Cedar. p^„^,,, p^^i,,^ ^ 24—Quicksilver. ( Crown Point 34-Denver. 25—Queen Group.! Q. Mining Co. 35-) 26—Lookout. 1 36—V Lucky Stone Group 27—Diamond. \ 37—) 28—Mercury. 38—Hurley. OF Mi: 39—Pacific. 40—Hercules. 41—Sonoma. 42— 43— 44— 45—Pontiac. 46- 47—Boston. 48—Empire. rn Point Quick-ver Mining Co. 49—Double Star. 50—Occidental. 51—Healdsburg. 52—Ed
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectminesandmineralresou
