The density of gold is 19.3 g/cubic centimeter. The density of gold is defined as the ratio of the mass to the volume. More »

Density was discovered by a Greek mathematician named Archimedes. He was born in the city of Syracuse, which was the heart of art, commerce and science, and his father, Phidias, was a mathematician and an astronomer. Arc... More »

The density of pure silver is 10.5 grams per cubic centimeter. However, the density of most silver found in nature usually ranges from 10 to 12 grams per cubic centimeter. More »

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Determine if gold is real by looking for a hallmark purity stamp, checking for magnetic attraction or performing a nitric acid test. Real gold is not attracted to a magnet and does not react when tested with nitric acid.... More »

As of 2014, research suggests that colliding neutron stars created gold by fusing various elements during massive explosions. Neutron stars are the extremely dense cores of dead stars that are left after the stars explod... More »

One can clean gold jewelry at home with everyday materials, including a toothbrush, dish detergent and water. The overall process is simple and only takes 15 minutes. More »

9K gold is 9 karat gold, or 9 parts pure gold to 15 parts other metal. According to an excerpt from "How Products Are Made" hosted on, the karat (K) is the unit gold alloys are measured in. More »