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Table of Contents
The only recreational gold mining directory on the web today!

Clubs & Organizations
Gold Mining & Prospecting
Metal Detector & Treasure Hunting
Rock Hound & Earth Science

Electronic Detectors
Mining Equipment

Book Authors
Ghost Towns & Lost Mines
Gold Markets
Personal Home Pages & Blogs

Stores & Services
Claims & Property
Electronic Detectors
General Merchandise
Prospecting Supply
Raw Gold Jewelry Stores

Tourist Attractions
Gold Mining Expeditions
Gold Camps
Tour Agencies

History of gold in Russia

HMMC Publications

Visit our on-line presentation of the "Modern Gold Dredge" by Bruce Harris. This includes a great Gold Mining Dictionary.

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Assayers and Assaying Companies
This section is a listing of precious metal assayers, both public and government.

Brownstone Mining LLC
Assayer, Metallurgist, Mine-engineer.
Contact: Paul
Ph: 1-760-876-5025 (Regular business hours Monday - Friday)
Serving the mining community since 1952
Metallurgical testing, mill design & construction, assaying geophysical, geochemical, consulting and more.

Charles L. Butler, Assayer
Absolutely, the best way to assay for gold, silver, platinum & palladium.
113 Jones Street
Bodfish, CA 93205
Ph: 1-760-379-3330
(Please call between 9 A.M. & 9 P.M. California Time)
Butler Labs Oxyacetylene Torch Assaying.
The Torch Fire Assaying Information Page
We, here at Butler Lab, have developed an assay procedure to be used as a supplement to furnace assaying of the noble metal ores. It is quick and inexpensive, with most assays requiring 15 to 20 minutes and costing something less than 50¢ each. Since these tests may be performed equally well at home, in the field or laboratory, this procedure becomes very useful to the novice and professional, alike. Most Clients learn the procedure within 10 to 12 hours.
Hundreds of clients have learned to assay and leach their noble metal ores, through use of our step by step, instruction manuals, listing all required supplies and their source.
Chemicals & supplies available - ask for brochures & price list.

Copper State Analytical Lab
1050 Spire Dr. Unit J
Prescott, AZ 86305
Contact: Andrew Shah
Ph: 1-928-443-5227
Providing a full spectrum of analytical services. Water testing, soil testing, or assay. Our team of chemists' led by a Dr. of chemistry certified registered Assayer have nearly 40 years of experience in the assay field.
Assay Services: ICP Spectrometry, Atomic Absorption Spectrometry & Fire Assay. Full chemistry testing capabilities.

Geologist: George Hamilton
P.O. Box 5381
Virginia Beach, Virginia 23455 USA
Ph: 1-757-363-8093 or fax: 1-801-991-3134
Contact: George Hamilton
The best way to reach me is by email or fax. I am typically away from my residence in the field.
E-Mail:, or unavailable
Assaying of ore specimens. Core analysis and petrographic thin section interpretation. Also providing exploration geology services, maps and specimens. Specializing in precious metal exploration for gold, silver, platinum group minerals. Aeromagnetics, geophysics, geology and geochemical products and services.

Lawrence Hittle
PO BOX #33
Jamestown, CO 80455
Ph: 1-303-442-7157
Fast Fire Assays, Au and Ag. Fast, accurate, affordable.
$35 for a gold/silver assay. $30 for gold alone. $10 sample prep (jaw, split, dry, pulverize) Usually 3 day turnaround or less.
A niche with the small miner in mind.

Rare Metals Corporation (RMC) 
Specializing in the analysis and concentration of Gold,PGM & Rare Earth metals. We can provide analysis on over 70 different elements. RMC utilizes Dry Electrostatic Air Concentrators (no water needed), Knelson Gravity Concentrators, Tables, & Flotation. We provide services from laboratory testing to full scale production.

Ray Grimmer Lab Service (R.G.L.S.)
PO Box 97
Sturkie, Arkansas 72578 USA
Ph. 1-870-895-3095
Our only business is fire assaying; Gold Silver, and Platinum!
Fire assaying of gold,silver,& PMG. Serving everyone from the small prospector to the large mine operator. We offer fast turn around time on your assay. Sample prep work is included with all assays.

US Government

Bureau of Mines / US Department of the Interior
The Federal Bureau of Mines, although it attempts to avoid duplication of the services rendered by state agencies, is authorized to give advice regarding prospective markets. It does not compete with private assayers and chemists, but it will accept samples sent to its field laboratories and identify them by visual or microscopic inspection. This examination is usually sufficient to indicate whether or not the material has commercial value, or at least, if the expense of an assay would be warranted. Except in connection with its own technical investigations, no assays or other special tests are made by the Bureau of Mines.
A free booklet called "Assaying Ores, Concentrates, and Bullion" (Information Circular 8714r/Bureau of Mines) is available, which provides basic information about various testing techniques available to the public at commercial laboratories; chemical analysis, optical emission spectrographic analysis, fire assay analysis, x-ray analysis, atomic absorption analysis, and neutron activation analysis.
This information booklet also provides some information on the procedures for obtaining ore samples, prices for assaying, and a partial list of commercial assay laboratories. A general statement of policy regarding the Bureau's mineralogical services that are available to the public is included in the Federal Register.
This government office can help greatly and provide information concerning subjects such as prospective markets and assaying. To receive the above information booklet (IC 8714r) contact your local office or write:
Downloadable PDF: Assaying Ores, Concentrates, and Bullion

Branch of Publications Distribution
Bureau of Mines
4800 Forbes Avenue
Pittsburgh, Pennsylvania 15213 USA

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