There is no standard lot size. However, some cities have similar lot sizes for houses. In Southern California, it's not uncommon for lots to be about 50' X 100', or about 5,000 square feet, in size. That's less than 1/8 acre, since an acre is something over 42,000 square feet. Some cities require that lots be of a certain size or higher before a second dwelling can be erected there, or restrict the square footage of the house on the lot to some proportion of the lot area.
General Types of Gold Ores: Gold deposits are often classified according to their association. The first of these may be catalogued as quartzose. This implies that the gangue mineral is acid, that is, quartz, and that fluorite may abound, or even the other gangue minerals of the alkaline earth group.
Instead, they look in the earth for relatively high concentrations of gold, which can be mined and refined into pure bullion. Gold is found both close to the surface of the Earth, and underground mixed in with other metals such as copper, silver and lead.nstead, they look in the earth for relatively high concentrations of gold, which can be mined and refined into pure bullion. Gold is found both close to the surface of the Earth, and underground mixed in with other metals such as copper, silver and lead.