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File:The copper resources of California (1905) (14598368527).jpg

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English:
Mountain Copper Company smelter, Keswick, Shasta County, California

Identifier: copperresourceso00auburich (find matches)
Title: The copper resources of California
Year: 1905 (1900s)
Authors: Aubury, Lewis E., b. 1862
Subjects: Copper mines and mining Copper ores
Publisher: Sacramento, W.W. Shannon, Superintendent State Print.
Contributing Library: University of California Libraries
Digitizing Sponsor: Kahle/Austin Foundation and Omidyar Network

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3.77 to 3.83. It is transparent tosubtranslucent. This is a valuable copper ore, and is found inCalaveras, Inyo, and Monterey counties. It carries 69.2 copperoxide, 25.6 carbonic acid, and 5.2 water. ,. Malachite.—Is the green carbonate of copper; the color isbright green, giving a pale green streak; the hardness is 3.5to 4, and specific gravity 3.9 to 4. It is found commonly mas-sive, but also incrusting, with a delicate fibrous silky structure.It contains 19.9 carbon dioxide, 71.9 cupric oxide, and 8.2
Text Appearing After Image:
■r. ■1 ^*f. T.■f. (15) 16 THE COPPER RESOURCES OF CALIFORNIA. water. It is a valuable copper ore, and when found massiveis used for ornamental purposes. It is found in numerousparts of California, but hitherto not massive. Cuprite.—Red oxide of copper; is an oxide of copper ofvarious shades of red, from cochineal red to almost black. Ithas an adamantine or submetallic to earthy luster, and abrownish red, shining streak. The hardness is 3.5 to 4, andspecific gravity 5.85 to 6.15. It contains 88.8 copper, ir.2oxygen, and is a common mineral in California, having beenfound with native copper in Del Norte and Plumas, also nearSt. Helena in Napa County, further in Kern, Tulare, Shasta,Mono, Colusa, Placer, Trinity, and Nevada counties. Native Copper.-—This is pure copper, containing oftensome silver, bismuth, mercury, etc. The color is copper red,giving a metallic shining streak, and showing a metallic luster.It has a hardness of 2.5 to 3, and a specific gravity of 8.8 to8.9; and

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https://www.flickr.com/photos/internetarchivebookimages/14598368527/

Author Aubury, Lewis E., b. 1862
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Flickr tags
InfoField
  • bookid:copperresourceso00auburich
  • bookyear:1905
  • bookdecade:1900
  • bookcentury:1900
  • bookauthor:Aubury__Lewis_E___b__1862
  • booksubject:Copper_mines_and_mining
  • booksubject:Copper_ores
  • bookpublisher:Sacramento__W_W__Shannon__Superintendent_State_Print_
  • bookcontributor:University_of_California_Libraries
  • booksponsor:Kahle_Austin_Foundation_and_Omidyar_Network
  • bookleafnumber:24
  • bookcollection:caminesgeo
  • bookcollection:ucdavis
  • bookcollection:americana
Flickr posted date
InfoField
30 July 2014

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