1. According to the US Lawrence Liverpoolmore National laboratory, two-thirds of the world's gold is mined in South Africa.
2. About 78% of the world's annual gold supply is used as jewelry. The rest is for electronics and dental and medical applications.
3. The elemental symbol of gold is Au, originating from the word "aurum" in Latin meaning gold.
4. The crew helmet is equipped with a face covering covered with a thin layer of gold to help prevent harmful UV rays from the sun.
5. The world's largest natural yellow crystal is the size of a golf ball and originates from Venezuela. The gold bar weighs 217.78 grams and is worth about $1.5 million.
6. Earthquakes can create gold: A 2013 study in the journal Nature Geoscience shows that during an earthquake, water from cracks and fractures evaporates, leaving gold.
7. According to the National Mining and Mining Association of America, the first pure gold coins were produced in the state of Syria in 560 BC.
8. You can eat gold if you want. Shops for gourmets sell eaten yellow leaves and the debris add sparkle to the foods, from cakes, wine to olive oil. Don't worry about your stomach, gold is not digested and will be excreted.
9. Gold is also used in medicine to treat cancer. Radioactive yellow pepper au-88 can be injected directly into the tumor location and its radiation can destroy tumor cells without causing much spread to the rest of the body.
10. In addition, gold is also used in medicine as nano or in electronic microchips.
