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Platinum | Earth Sciences Museum | University of Waterloo

Platinum | Earth Sciences Museum | University of Waterloo

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Back to Rocks and Minerals Articles Kathy Feick Platinum is among the rarest and most expensive of the popular precious metals. Natural platinum is fairly impure. It is always associated with small amounts of other elements (gold, copper, nickel and iron) and commonly contains the rare metals platinum, palladium, rhodium, iridium, osmium and ruthenium.

The Rock Identification Key by Don Peck

The Rock Identification Key by Don Peck

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About the Rock Identification Key. This Rock Key has been designed and written to assist children and adults in identifying the common rocks they find in their back yards and on memorable vacations. Anyone may copy it freely for noncommercial use.

Rocks under the Microscope Index University of Oxford

Rocks under the Microscope Index University of Oxford

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Rocks under the Microscope. Pictured below are some common rock types as seen under the microscope. The images are classified according to rock type (sedimentary, igneous, metamorphic). Each thumbnail has a short caption and links (by clicking on the thumbnail itself) to .

Identifying Gold Bearing Rocks » Waihi Arts Centre Museum

Identifying Gold Bearing Rocks » Waihi Arts Centre Museum

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Identifying Gold Bearing Rocks. Gold is a very rare and precious metal that is soft, malleable and heavy, and it is often found with other minerals, such as quartz. Learn about the differences between gold and fool's gold with help from a lab manager and research scientist in this video on identifying rocks.

PURE GOLD AND IRON FROM SAND Elmer R. Gates

PURE GOLD AND IRON FROM SAND Elmer R. Gates

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PURE GOLD AND IRON FROM SAND. By C. Montgomery M'Govern. By the courtesy of Prof. Elmer Gates, one of the foremost American investigators of today, we publish below the first account of his newly discovered method for the extraction of iron and gold from sand. This justly may be ranked as one of the most important inventions of this century.

Rocks Information and Facts | National Geographic

Rocks Information and Facts | National Geographic

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Rocks are so common that most of us take them for granted—cursing when we hit them with the garden hoe or taking advantage of them to drive in tent pegs on summer camping trips.

Where to Find Gold

Where to Find Gold

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Look for round or rounded rocks well above the present high water level. Round or rounded rocks have lived in a river at some time in their lives. Always keep in mind that these are the most likely places to find gold. There is an old saying: "Gold is where you find it."

RUBY SAPPHIRE

RUBY SAPPHIRE

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Such aluminumrich rocks need to have been subjected to amphibolite grade metamorphism (high pressure and temperature). Thus you should be looking mountainous terrains or continental cores known as cratons that have extensive regions of metamorphic rocks, some containing amphibole and mica.

List of rock types Wikipedia

List of rock types Wikipedia

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The following is a list of rock types recognized by geologists. There is no agreed number of specific types of rocks. Any unique combination of chemical composition, mineralogy, grain size, texture, or other distinguishing characteristics can describe rock types. Additionally, different classification systems exist for each major type of rock.

Gold | Minerals Education Coalition

Gold | Minerals Education Coalition

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The meaning of its name is unknown, although its origins are AngloSaxon. Gold is a soft, shiny, yellow metal, and has been used and highly valued by humans for 4,500 years. It is the most malleable and ductile of any element and it can be beaten into a metallic film a few microns thick. Gold is also a good conductor of heat and electricity.

Polished Stone Identification Pictures of Tumbled Rocks

Polished Stone Identification Pictures of Tumbled Rocks

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Over one million copies have been sold. It has about 100 pages of basic gemstone information and about 200 pages dedicated to photos and descriptions of over 100 gems and gem materials. It contains about 1900 photos of gemstones in rough and cut states. It is an easytounderstand book written for people high school age and up.

How to Identify Rocks and Minerals Jan

How to Identify Rocks and Minerals Jan

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Rocks and Minerals By Jan C. Rasmussen (Revised from a booklet by Susan Celestian) 2012 Donations for reproduction from: Freeport McMoRan Copper Gold Foundation Friends of the Arizona Mining Mineral Museum Wickenburg Gem Mineral Society epidote fluorite calcite gypsum quartz pyrite .

Gold Quartz Rock | eBay

Gold Quartz Rock | eBay

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I found this beautiful quartz during a recent rock hounding trip in Lineville, Alabama See photos for visual quality! This one is amazing and there just may be Gold within the layers. AMETHYST GEODE HOME DECOR CRYSTAL QUARTZ PIRATE GOLD TREASURE MINERAL ROCK

Geologic units containing Schist USGS

Geologic units containing Schist USGS

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A strongly foliated crystalline rock, formed by dynamic metamorphism, that can be readily split into thin flakes or slabs due to the well developed parallelism of more than 50% of the minerals present, particularly those of the lamellar or elongate prismatic habit, mica and hornblende.

The Science of Bedrock Gold New 49ers Prospecting Club

The Science of Bedrock Gold New 49ers Prospecting Club

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Also, if you have a small hand microscope (available at most mining supply or lapidary shops), take a closer look at the small rocks and iron sands in your gold pan. You may be surprised at how much gold is clinging to the sands or small pieces of stone! In a lot of cases, the deepest portion of a bedrock crack or crevice will contain the most ...

Polished Stone Identification Pictures of Tumbled Rocks

Polished Stone Identification Pictures of Tumbled Rocks

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Over one million copies have been sold. It has about 100 pages of basic gemstone information and about 200 pages dedicated to photos and descriptions of over 100 gems and gem materials. It contains about 1900 photos of gemstones in rough and cut states. It is an easytounderstand book written for people high school age and up.