Gold

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Gold, Au(from latin for "shining dawn", aurum), 79, is a yellow-tinted soft metal, possibly the most well-known precious metal, and one of the most wanted metals in all humanity. It's extremely stable, and very difficult to corrode, for this reason it commonly occurs pure in nature, making it reletively easy to find.

Ah, gold, who doesn't like gold? Pure value, a chunk the weight of a US nickel is worth over $250(as of 2011). Gold has always been sought after because it's soft enough to work, and very difficult to corrode, meaning it's the perfect jewelry.

Gold is also used in electrical contacts, because besides being a very good conductor of electricity, not corroding means two surfaces will always connect when they touch, they'll never be covered in rust or oxide. Gold contacts aren't hard to find, there's probably some in your cellphone battery, or camera memory card.

These are my samples!

Gold Leaf

GOLD! Who doesn't love gold? Nobody, right? Yellow, shiny, impossible to corrode, one of humanity's favorite elements of all time, and these little vials contain some and cost only a few dollars! What is this wizardry, what alchemy allows this? Well the gold in these jars is actually incredibly thin and light, so what looks like a vial full is 99% air, and only contains a few milligrams of gold. At today's price of near $50 a gram, that's about 5 cents worth of gold, however the process of flattening it and the labor of putting it in these vials brings it up to a couple dollars, so it's good if you just desperately want SOME gold.

Date added(year-month-day):20110912, sample number:65

Tags(Elements in sample):gold

Gold Retro-Reflector

A retro-reflector is basically what you'd have if you cut a corner off of a cube, and plated the inside of it with mirror. Due to the shape of this arrangement, any light that hits it will be reflected straight back where it came from, no matter what angle that is. This is a particularly beautiful one because the mirrors aren't the normal silver/copper plating, but gold, I suspect because gold can reflect infrared light. Once again, a flea market find.

Date added(year-month-day):20110822, sample number:56

Tags(Elements in sample):gold

Gold

Gold! Everyone loves gold. Unfortunately this is just a few micron thick plating of gold on copper... Sadly all I have, but at least we can see what gold looks like. Torn off of a circuit board that had unusually much gold on it.

Date added(year-month-day):20110726, sample number:35

Tags(Elements in sample):gold

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