Where can I find large gold deposits?
Biggest sources Witwatersrand accounts for roughly 30% of all the gold ever mined. Other major sources of gold include the extremely deep Mponeng mine in South Africa, the Super Pit and Newmont Boddington mines in Australia, Indonesia’s Grasberg Mine, and mines in Nevada, US.
What kind of deposits are gold found in?
Gold is mainly found in two types of deposits: lode (hard rock veins) and placer (surface).
Where are most gold deposits in the United States?
Nevada
1. Nevada. Currently the top gold mining state of the US, Nevada is home to three of the world’s top 10 gold mines and seven of the top 10 US sites. Nevada’s Goldstrike is the top gold mine in the US, followed by the Cortez and Carlin Gold Mines, with all three located in north-central Nevada.
What other mineral is commonly found with gold deposits?
In auriferous quartz lodes the minerals most commonly associated with gold are iron and copper pyrites, zinc blende, galena, and tetradymite. Tellurides of gold are very widely distributed. Other minerals occurring with gold are tourmaline, calcite, uranium ochre, roscoelite, vanadinite, crocoite, wollastonite, gypsum.
What is the biggest gold deposit?
Muruntau mine
List of largest gold mines by production
| Number | Name of mine | Production (million grams) |
|---|---|---|
| 1 | Muruntau mine | 73.7 |
| 2 | Grasberg mine | 32.06 |
| 3 | Pueblo Viejo | 31.4 |
| 4 | Yanacocha | 27.49 |
Where most gold is found?
About 244,000 metric tons of gold has been discovered to date (187,000 metric tons historically produced plus current underground reserves of 57,000 metric tons). Most of that gold has come from just three countries: China, Australia, and South Africa.
Where is gold found in the ground?
Gold is usually found embedded in quartz veins, or placer stream gravel. It is mined in South Africa, the USA (Nevada, Alaska), Russia, Australia and Canada.
How can you tell if a rock contains gold?
You’re looking for a scratch on the glass. If the glass gets scratched from the ‘gold’, it’s not actually gold. Since glass has a hardness of around 5.5 it will only be scratched by harder minerals like pyrite and quartz. If the glass doesn’t scratch then that’s a great sign – you likely have gold in your rock!