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platinum mining in california

  • California Gold Nuggets | Gold Nuggets for Sale

    California gold nuggets are highly valued and sought after by investors and collectors and are becoming increasingly hard to source as California has banned river dredging to protect the salmon. River dredging is the main source for finding gold nuggets in California.


  • Platinum: The mineral native Platinum information and pictures

    Platinum also is found in the placer deposits of Trinity Co., California. Another U.S. locality is Cape Blanco, Curry Co., Oregon. The only active Platinum mine in Canada is the Lac des Iles Mine, near Thunder Bay, Ontario, which is mined primarily for palladium.


  • USA Mines For Sale - MineListings.com

    Located in Idaho, USA. Proven reserves of 50 million tons. High grade gold and platinum group elements. Lower Grandview Mine. The potential output of the Grandview mine is truly astounding. 20 Lode Mining and One Mill Site claims near the end of the Oregon Trail with all perm … Legendary – Shirley Bar Gold Mine


  • DOC Maps: Mines and Mineral Resources - California

    DOC Maps: Mines and Mineral Resources The California Department of Conservation's Division of Mine Reclamation (DMR) compiles data on the current status of mines and the commodities produced. The California Geological Survey (CGS) produces Mineral Land Classification (MLC) studies that identify areas with potentially important mineral resources ...


  • California Silver mining, mines, mine owners and mine ...

    California Silver mining, Silver mine companies, mine owners and mine information. US-Mining provides information on mines, operators, and minerals mined in California


  • Unintended environmental consequences of mining regulation ...

    Mar 27, 2018· The California State Mining and Geology Board ("Board") recently took its first step to revise California's backfill regulation that applies to the reclamation of open pit metallic mineral ...


  • I'm Looking for Places to Go Gold Panning in California ...

    Jan 20, 2018· I'm Looking for Places to Go Gold Panning in California. Travel Tips. Lara Webster, ... you can enjoy a history lesson about the gold rush and pan for gold at the Julian Mining …


  • Platinum: Mineral information, data and localities.

    Clark, Wm. B. (1970b) Platinum: California Division Mines and Geology Mineral Information Service: 23(6): 115-122. Offield Mountain ⓘ Mann and Ross Drift Mine (Mann and Ross Mine; Reynolds Creek Mine) Logan, Clarence August (1918), Platinum and allied metals in California: California Mining …


  • CALIFORNIA_GOLD

    Lode mines and placers produced over 2 million ounces of gold in Trinity County between 1880 and 1959, most of it came from placer gravels of the Trinity River. Trinity County is the dredgers best chance to find a large platinum nugget in the state of California. Several Nuggets of Platinum greater than 1 ounces have been found. Coffee Creek


  • Placer Platinum Nuggets - Where You Can Find Them ...

    Quick Facts. 770 records of mining claims on public land managed by the Bureau of Land Management.; 25 active mining claims; 745 closed mining claims; 179 USGS records of mines in Humboldt County, California.; Gold, Chromium, Manganese, Platinum, and Silver mines located in Humboldt County, California.See All


  • mining raw platinum in california - BINQ Mining

    Platinum and Gold Natural Crystals, platinum and gold nuggets …. The specimen weighs several ounces and was taken from a gold mine in California in the late 1800s. This … Most raw platinum is also mined as microscopic particles. »More detailed


  • Prospector's Guide to Diamonds - Diamond Placers

    Why no diamonds were found in this region in the 1800s as in California is simply due to the fact that the Californian diamonds were found as a by-product of considerable gold mining. In the State Line district, where the country rock is unmineralized granite, there was little to no placer gold mining in past years.


  • platinum mining, mining of platinum, platinum, platinum ...

    The mining of platinum ores is alike gold mining. The platinum orebody is a thin, tabular reef covering a vast area. This enables a progressive method of mining which includes the drilling of the reef and blasting it to advance the face. It combines the increased use of industralization and trackless-mining methods in steps.


  • Platinum Nuggets Platinum Placer Deposits

    Platinum is also found in small quantities in a number of the placer gold deposits of Alaska, where significant amounts of platinum have been recovered at some locations. Platinum metals were the primary metal mined by dredging for many years in the Goodnews Bay district. Dredging was only ended in …


  • List of PLATINUM mining companies.

    List of PLATINUM mining companies with access to company profiles, projects, resources and reserves and technical analysis.


  • Death Valley Treasures - California - Gold Rush ...

    Jan 07, 2014· Come with us as we walk through some very significant mines in the Trona/Ballarat area and in the Owens Valley, California. Documenting the surveys and explorations of the great gold mines …


  • USGS: Mineral Resources On-Line Spatial Data: California

    Intended to promote further understanding of the geology and structure in the central California Coast Ranges, includes downloadable gridded point database. Info: Review of samples of sediment, tailings, and waters adjacent to the Cactus Queen gold mine, Kern County, California. Mine tailings here have high levels of arsenic.


  • Copper mining in the United States - Wikipedia

    Copper mining in the United States has been a major industry since the rise of the northern Michigan copper district in the 1840s. In 2017 the United States produced 1.27 million metric tonnes of copper, worth $8 billion, making it the world's fourth largest copper producer, after Chile, China, and Peru. Copper was produced from 23 mines in the US.


  • Ancient Rivers of Gold

    Platinum Platinum is widely distributed in the gravels of the Tertiary rivers of the Sierra Nevada. The platinum is always associated with the gold. Some of the counties where platinum has been proven to be present in the sands are: Butte, Calaveras, Nevada, Placer, Plumas, Sacramento and Yuba. Garnet


  • Gold in the American River - California Gold Rush - Mother ...

    The American River was were gold was first discovered in California, and it went on to be one of the most significant gold discoveries in the entire world. Gold prospectors can still find plenty of gold today in the American River, which drains some of the richest gold …


  • Placer Platinum Nuggets - Where You Can Find Them ...

    Sep 03, 2015· Platinum nuggets are actually MUCH rarer than placer gold nuggets are. Nearly all of the platinum found around the world is microscopic bits that are extracted from the ores, and not large enough to be captured by traditional placer mining methods. The largest source of platinum is South Africa. Recently a mine in the state […]


  • MAPS SHOWING PLATINUM-GROUP ELEMENT …

    MAPS SHOWING PLATINUM-GROUP ELEMENT OCCURRENCES IN THE CONTERMINOUS UNITED STATES, UPDATED AS OF 1993 ... production for California has been estimated at about 30,000 oz (Sjoberg and Gomes, 1981) and for Oregon at ... Stillwater Mine, this mineralized zone, the J-M Reef, extends the entire length of the complex. Other styles of


  • Platinum Mine, LLC in Los Angeles, CA | Company Info & Reviews

    Platinum Mine, LLC is a California Domestic Limited-Liability Company filed on August 7, 1998. The company's filing status is listed as Sos/Ftb Suspended/Forfeited and its File Number is 199821910080. The Registered Agent on file for this company is Kevin Anderson, ESQ and is located at 208 Horizon Ave. Ste 400, Venice, CA 90291.


  • Southwest US Snapshot: Precious metals ... - mining.com

    Nov 14, 2019· In our annual overview of exploration and mining activity in the Southwestern US, we focus on eight companies active in the region. Precious metals appear to …


  • Iridium: Mineral information, data and localities.

    ⓘ Michigan Salmon Hydraulic Mine (Red Hill Mine) Logan, Clarence August (1918), Platinum and allied metals in California: California Mining Bureau. Bulletin 85, 120 pp.: 66-67, 78-79; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 43. Somes Bar; Sugarloaf ⓘ Ten Eyck Placer Mines Inc.


  • Lake County, California Platinum Mines | The Diggings™

    Filter 3 platinum mines by commodity, disposition, development status, and record type in Lake County, California. Quick Facts Aluminum, Antimony, Arsenic, Asbestos, and Boron-Borates mines located in Lake County, California.


  • A GOLD-PLATINUM-PALLADIUM LODE IN SOUTHERN …

    A GOLD-PLATINUM-PALLADIUM LODE IN SOUTHERN NEVADA. By ADOLPH KNOPF. INTRODUCTION. The discovery of platinum-bearing gold ore at the Boss mine, in southern Nevada, was brought to the attention of the Geological Survey by Mr. F. A. Hale, jr., in September, 1914. Some samples of the ore were submitted at the same time.


  • Gold mining in the United States - Wikipedia

    The largest gold-mining district in California is the famous Mother Lode of the Sierra Nevada. Found in the early 1850s, the lode is a zone one to four miles wide and running 120 miles northwest-southeast from El Dorado County in the north, through Amador, Calaveras, and Tuolumne counties, to Mariposa County in the south.


  • US Diamond Mines - Diamond Mining in the United States

    Two Commercial Diamond Mines. Two locations in the United States have been worked as commercial diamond mines. The first was a mine near Murfreesboro, Arkansas.It was worked as a commercial diamond mine by a succession of operators in the early 1900s but closed because the deposit was subeconomic. Today it is known as the "Crater of Diamonds" and is operated by the State of Arkansas …


  • Unnamed Location

    The Unnamed Location is a platinum mine located in Calaveras county, California at an elevation of 200 feet.