Australian gold rushes of a unique national identity. Although not all diggers found riches on the goldfields, many decided to stay and integrate into these communities. In July 1851, Victoria's first gold rush began on the Clunes goldfield. In August, the gold rush had spread to include the goldfield at Buninyong (today a suburb of Ballarat) 45 km (28 m) away and, by early September 1851, to the nearby goldfield at Ballarat (then also known as Yuille's Diggings), followed in early September to the goldfield at Castlemaine (then known as Forest Creek and the Mount Alexander Goldfield) and the goldfield at Bendigo (then
Gold in California Both during the Gold Rush and in the decades that followed, gold-seekers also engaged in "hard-rock" mining, that is, extracting the gold directly from the rock that contained it (typically quartz), usually by digging and blasting to follow and remove veins of the gold-bearing quartz. By 1851, quartz mining had become the major industry of Coloma. Once the gold-bearing rocks were brought to surface, the rocks were crushed and the gold separated, either using separation in water, using its density difference from quartz sand, or by washing the sand over copper plates coated with mercury (with which gold forms an