how do look at rocks contain gold

In What Rock Formations Can Gold Be Found? | Sciencing

Gold is most often found in very small amounts mixed with other materials Experienced gold prospectors rarely look for gold, but rather look for rocks and rock formations that are known to hold gold...

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quartz rock with gold - klabrickellparents

Jun 11, 2012· Do my quartz rocks contain gold? Quora Look at the rock with magnifier lens, if you don't see gold its not worth considering If you want to go further you would have to crush it to the size of flower Then add something to lessen the surface tension, like a detergent or trisodium pho...

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Volcanic Minerals - Oregon State University

Gold in Porphyry Deposits Gold and copper are found in ore bodies associated with porphry Porphry is a general term applied to igneous rocks of any composition that contain conspicuous phenocrysts (crystals) in a fine-grained groundmass...

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What does Gold Look Like in Nature? Identify Real Gold

Home >What does Gold Look Like in Nature? , depending on the concentration of the gold within the rock Many ores that contain gold contain other metallic metals in them also, so there are likely to be a lot of shiny minerals mixed into the rock which may or may not be valuable...

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Geology of gold - SBS Radio

Geology of gold Properties of gold , during a period of intense metamorphism and intrusion of igneous rocks The gold-bearing quartz reefs in Victoria are significantly younger, about 400 ....

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Minerals, Rocks & Rock Forming Processes

Texture describes the way the minerals in the rock look like and relate to each other (large vs small; ideal crystal shapes or irregular grains; , Gold and platinum nuggets from placer deposits (river sands and gravels that contain detrital gold and platinum) , Metamorphic rocks may contain relic structures, such as stratification, ....

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Extracting gold from rock - OpenLearn - Open University

Extracting gold from rock Updated Tuesday 27th February 2007 Information on how to extract gold from rock, one of the scientists' challenges on the BBC/OU series Rough Science 3 , For further information, take a look at our frequently asked questions which may give you the support you need Have a question? Other content you may like ....

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The Rock Identification Key - by Don Peck

13 Does the rock look like it is composed of mostly only one mineral and has many thin flat layers? , 19 Does the rock contain sand and larger pieces of rock or pebbles? , Although The Rock Identification Key is copyrighted, it may be distributed freely for noncommercial use by individuals, educators, and organizations ....

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RUBY & SAPPHIRE - gemhunterwebs

If you live in the Appalachian Mountains in the eastern US, look for serpentines or vermiculites for rubies and sapphir , manganese, gold and silver One host rock that contains ruby and sapphire is vermiculite schist And simply by searching for vermiculite , but a significant number do (maybe 15 or 20%) Another rock that sometimes ....

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Natural Gold Indicators (Part 1) - Gold Geology Lesson ,

Gold Geology and the Natural Indicators that can help you find gold Not all gold deposits out there have been found and mined There are still places that contain gold that have never been worked, despite the fact that miners have been searching for gold for hundreds of years now...

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4 Ways to Prospect for Gold - wikiHow

Jul 19, 2018· How to Prospect for Gold Many people dream of going into the mountains and streams and finding an unclaimed deposit of gold , Areas that contain likely deposits of lode gold have been explored thoroughly The inexperienced prospector with minimal capital has little chance of discovering a lode worth developing 2 Look in volcanic and ....

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Gold-Bearing Soil Types | Our Pastimes

This region contains fractured sedimentary rocks that also contain silica, pyrite, coloradoite and other rock formations The gold is mainly found in trace amounts within arsenical pyrite and other rocks, and must be detected using electron microprobe technology...

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How to Look at a Rock Like a Geologist - ThoughtCo

How to look at a rock like a real geologist with these notes on the most basic operation in geology Look at a rock and figure out what kind of rock it is Menu , Many old seaport cities contain stones brought as ballast in foreign ships Make sure your rocks are associated with a real outcrop of bedrock...

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3 Ways to Identify an Unopened Geode - wikiHow

Dec 16, 2018· How to Identify an Unopened Geode Though geodes may look like ordinary rocks, they conceal a hollowed interior that is chock full of different colored minerals and rocks such as amethyst, quartz, agate, and jade , Sharp, pointy rocks rarely contain geod 2 ,...

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So You Found a Shiny Black Rock: 6 Things it Might Be

Maybe that shiny black rock you stumbled across is a lump of coal But maybe it's something else Here are 6 things it might be...

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Why is gold so often found near or in quartz rock? | Yahoo ,

Oct 11, 2009· The short answer is that the conditions and the hydrothermal solutions that are needed for the deposition of gold are also right for the deposition of quartz Of course, quartz can be deposited over a wide range of conditions, unlike gold - which is why most gold deposits contain quartz also but most quartz deposits do not contain gold!...

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Gold in lgneous,Sedimentary, And Metamorphic Rocks

Gold in lgneous,Sedimentary, And Metamorphic Rocks Gold in Igneous, Sedimentary, And Metamorphic Rocks , Igneous rocks contain as little as 02 and as much as 73 ppb (parts per billion) gold The average, calculated on the basis of , of Canada contains 10 ppb gold ,...

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DIAMONDS & Host Rocks

So, where do diamonds come from? Diamonds are found in several rock types, but the primary commercial host rocks are kimberlite and lamproite [2] And there are also secondary hosts known as placers that contain diamonds - like those found along the west coast of Africa...

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General Types of Gold Deposits - Minelinks

The indigenous gold content of these granitic rocks is invariably low, of the order of 0003 ppm Certain albitites and quartz-feldspar porphyry dykes and stocks with indigenous pyrite and pyrrhotite may contain up to 010 ppm Au and 10 ppm Ag, principally in the sulfide minerals...

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Gold in schist? - GPEX

Gold Prospecting Forums - General >Rockhounding, Gem & Mineral Collecting Gold in schist? << < (2/2) GollyMrScience: The schist is an indicator of change in the rock Metamorphosed so heat and pressure have changed the original rock , Good to see you are going for the gold, :D Use them rocks and look for key stones in the deposit ....

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Geology Of Hard Rock Gold Deposits

Geology Of Hard Rock Gold Deposits , Many pyrite and pyrrhotite minerals contain gold, which is often recovered when extracting copper from lode vein deposits The purity of gold is stated in terms of fineness and carats (ct) Fineness is defined as the parts per 1000 For example gold with a fineness of 800 means it is 80% pure gold...

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Gold Rises With Molten Rock - Live Science

Plumes of molten rock from the Earth's mantle bring higher amounts of gold and other rare metals up to the planet's surface , "The deeper mantle probably contains more gold and other iron ....

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The Science of Bedrock Gold - New 49ers Prospecting Club

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 ....

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Peridotite: Igneous Rock - Pictures, Definition & More

Peridotite is a generic name used for coarse-grained, dark-colored, ultramafic igneous rocks Peridotites usually contain olivine as their primary mineral, frequently with other mafic minerals such as pyroxenes and amphibol Their silica content is low compared to other igneous rocks, and they contain very little quartz and feldspar...

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How to test if gold is real - Goldbay - Selling gold ,

You will distinctly see the gold looks like gold, and the pyrite does not If you look closely you will also notice that the large rock that the gold ring, gold nugget and gold rock are sitting on has very sharp, fractured and angular shape , Serpentine is green and contains gold sometimes, quartz does as well, but gold is interesting in ....

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How to find gold using rocks and minerals video

Hunting 4 Gold Discover where you can find gold! Products , for now take a look, Take a look at these two gold prospecting videos now: , I hit a large vain of quarts crystal rocks There are gold spots on these rocks How do I test these places that are gold looking, in order to tell if it is real raw gold?...

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Meteorite Museum - University of New Mexico

If there are other, brightly-colored crystals or grains in the rock, it is probably not a meteorite, but many slag products do contain a variety of bright-colored crystals and fragments If there is an easily visible crystal structure it might not be a meteorite...

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Gold in limestone - Gold Refining Forum

Nov 27, 2013· Gold Refining Forum Hobbyists and Professionals Helping One Another Skip to content Quick links FAQ; Logout; , you will need to determine how much gold the ore contains, not just in a couple of choice rocks, but over the whole mining area, if you get an assay of a rich looking rock you pick up it may not represent the rest of the mine ....

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How to Find Gold in Quartz | Sciencing

A good place to look for gold-bearing quartz rocks is to go where other miners and prospectors have already been Even rocks that have been passed over by other prospectors as well as gold mine tailings (leftovers) may contain gold...

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Metal, Iron, & Nickel - Meteorite Information

If you have a rock that contains between 10 and 18% nickel (whole-rock analysis), whether or not it appears to contain metal, then the rock might be a meteorite If you have a rock that does not contain metal and has a low concentration of nickel (<1% = <10000 ppm), it could still be a rare type of meteorite, an achondrite ...

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