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gold
Gold is a chemical element with symbol Au (from Latin: aurum) and atomic number 79. In its purest form, it is a bright, slightly reddish yellow, dense, soft, malleable and ductile metal. Chemically, gold is a transition metal and a group 11 element. It is one of the least reactive chemical elements, and is solid under standard conditions. The metal therefore occurs often in free elemental (native) form, as nuggets or grains, in rocks, in veins and in alluvial deposits. It occurs in a solid solution series with the native element silver (as electrum) and also naturally alloyed with copper and palladium. Less commonly, it occurs in minerals as gold compounds, often with tellurium (gold tellurides).
Gold's atomic number of 79 makes it one of the higher atomic number elements that occur naturally in the universe. It is thought to have been produced in supernova nucleosynthesis and from the collision of neutron stars and to have been present in the dust from which the Solar System formed. Because the Earth was molten when it was just formed, almost all of the gold present in the early Earth probably sank into the planetary core. Therefore, most of the gold that is present today in the Earth's crust and mantle is thought to have been delivered to Earth later, by asteroid impacts during the late heavy bombardment, about 4 billion years ago.
Gold resists attacks by individual acids, but it can be dissolved by aqua regia (nitro-hydrochloric acid, literally "royal water"). The acid mixture causes the formation of a soluble gold tetrachloride anion. Gold metal also dissolves in alkaline solutions of cyanide, which are used in mining and electroplating. It is insoluble in nitric acid, which dissolves silver and base metals, a property that has long been used to refine gold and to confirm the presence of gold in items, giving rise to the term acid test; it dissolves in mercury, though, forming amalgam alloys, but this is not a chemical reaction.
This metal has been a valuable and highly sought-after precious metal for coinage, jewelry, and other arts since long before the beginning of recorded history. In the past, a gold standard was often implemented as a monetary policy within and between nations, but gold coins ceased to be minted as a circulating currency in the 1930s, and the world gold standard was finally abandoned for a fiat currency system after 1976. The historical value of gold was rooted in its medium rarity, easy handling and minting, easy smelting, corrosion resistance, distinct color, and non-reactivity to other elements.
A total of 183,600 tonnes of gold is in existence above ground, as of 2014. This is equivalent to 9513 m3 of gold. The world consumption of new gold produced is about 50% in jewelry, 40% in investments, and 10% in industry. Gold's high malleability, ductility, resistance to corrosion and most other chemical reactions, and conductivity of electricity have led to its continued use in corrosion resistant electrical connectors in all types of computerized devices (its chief industrial use). Gold is also used in infrared shielding, colored-glass production, gold leafing, and tooth restoration. Certain gold salts are still used as anti-inflammatories in medicine.
Nice condition Ruger gp100 6 inch barrel smooth cylinder wood grip. Have fired one box of blazer brass .357 magnum through it. Other than that it's sat In my safe.
Asking 750 OBO. Also would entertain trades or accept silver/gold as payment.
Do you like owning crazy, off the wall, firearm related stuff? You want to have a piece you can show off to all your buddies? Well now’s your chance!
I’m a partner and lead artist at Grit City Cerakote out of Tumwater, WA, and we like to do crazy, never before seen things in the firearm...
Selling some of my hobby gold that I've found here in Oregon 15.5 grams fluxed and smelted down to 12.349 grams of tested to .916 purity or 22k that's as good as I can get it with my furnace and Flux. Gold prices are going up so I'm going to list a few buttons for anyone interested in having...
This stunning gold nugget from the Siskiyou Mountains is a must-have for any gold enthusiast. I personally found this piece while river prospecting.
Weighing 2.43 grams, this one-of-a-kind piece exudes beauty and is perfect for a collection or as a jewelry piece.
Gold and Quartz Matrix.
I...
This stunning gold nugget with quartz matrix from the Siskiyou Mountains is a must-have for any gold enthusiast. I personally found this specimen piece while river prospecting.
Weighing 1.17 grams, this one-of-a-kind piece exudes beauty and is perfect for a collection or as a jewelry piece
This stunning gold nugget from the Siskiyou Mountains is a must-have for any gold enthusiast. I personally found this piece while river prospecting.
Weighing 1.68 grams, this one-of-a-kind piece exudes beauty and is perfect for a collection or as a jewelry piece.
I will ship.
This stunning gold nugget from the Siskiyou Mountains is a must-have for any gold enthusiast. I personally found this piece while river prospecting.
Weighing .65 grams, this one-of-a-kind piece exudes beauty and is perfect for a collection or as a jewelry piece.
I will ship.
Gold and Quartz...
Fresh in on consignment
Never Fired
24k Gold Plated
Zastava ZPAP92
Magazine and cleaning rod also 24k Gold Plated
Comes with dark walnut and red wood grip
$5299.99 + background check or shipping to your FFL...
Hi again friends,
So I'm moving away from the AK platform. Trying to consolidate my collection, and move toward a NV setup with an AR (eventually). I have for sale/trade my PSA AK GF5 E, their top of the line model. I would encourage you to read up on it, as it's very feature rich. Forged...
Target Sports USA has Wolf Gold 5.56 55gr M193 FMJ or PMC X-TAC 5.56 62gr M855 (green tip) for $499.50 for 1,000 with free shipping and handling. If you have their prime membership ($95 a year) it's $459.54 for 1,000.
Wolf Gold M193...
I was checking around at Target Sports USA and saw Wolf Gold 5.56 55gr M193 FMJ for $512.50 for 1,000 with free shipping and handling. I don't know of any coupon code to help with the cost and I'm not part of their special pricing club, so that might save somebody a bit more. Hope it helps...
Taurus PT92 9mm Stainless with 24 karat gold trim and mother of pearl grips.
This is is a factory special edition gun that is no longer in production. I am the original owner and the gun has never been fired once it left the factory. New in original box.
Extra magazines available. This is...
For Sale is a BRAND NEW Sig Sauer P320 Compact 3.9" Gold Tin Barrel that is from the P320 XCarry Spectre! Just pulled the Barrel. Has slight wear on the barrel hood due to factory function test fire and racking of the slide. Most P320's see wear on that spot in the barrel hood. Regardless, it's...
For Sale is a BRAND NEW Sig P320 9mm Spectre FCU with Gold Tin Flat Trigger! Comes with the Take Down Lever as well. If interested, please PM me.
$325 Cash. Transfer and background check at buyers expense through Adaptive Firing Solutions in Oregon City, Tigard Pawn 4 More or Money Market Pawn...
Thar’s Gold in them thar hills!
Everything you need to take the family Panning for Gold. Comes with the gear you need to strike the mother-load. Did you know that many of your favorite places to shoot, camp, hunt and fish are also good places to pan for Gold? Great diversion for the kids when...
Garrett 1140680 AT Gold Metal Detector and Pro-Pointer AT 1140900
$560 for both. The price is firm. Not splitting them up.
Pickup is in Ridgefield, WA
I have the price over two hundred dollars less than you can find on Amazon.
Both are practically brand new and work great. Tested them a few...
This is a Keene 2" backpack Gold dredge. Bought this because I was interested in Gold prospecting when I was in high school and a few years after. I have a family now and am expecting our first child in February, I haven't used it in years. I only took it out a handful of times and had a good...