File:Appendix to the Journals of the Senate and Assembly of the session of the Legislature of the State of California (1917) (14784175145).jpg

Identifier: appendixtojourna19177cali (find matches)
Title: Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California
Year: 1853 (1850s)
Authors: California. Legislature
Subjects: Legislative journals
Publisher: Sacramento : State Printing
Contributing Library: San Francisco Public Library
Digitizing Sponsor: San Francisco Public Library

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up the sluice boxes of thehydraulic mines after the seasons washing, these black sands are col-lected in large quantities and the platinum and gold content are foundto vary greatly in their relative proportion to each other. On FrenchHill the platinum forms 5% of the total values. At Antone Kau:5smine on Craighs Creek pieces of coarse platinum worth up to ^25 havebeen found. On the Myrtle Creek Mining Companys property theblack sands are said to assay as high as $3,562 per ton in gold andplatinum. Serpentine is a prominent rock formation in the Smith River basin,and being an alteration rock derived from peridotite which carriesplatinum, seems to bear out the theory of platinum deposits in theplacer gravels. Outside of these river gravels and sands the only other black sanddeposit being worked in the county is on the beach 2 miles south ofCrescent City. Oro Del Norte Company. This company is incorporated for one mil-lion shares at a par value of $1 per share. The company owns 255 acres
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Oro Del Norte Black Sands Plant, showing method of hauling sands to bins on incline trestle. 376 MINES AND MINERAL RESOURCES.

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