Today it is mined as iron ore. Some underground anthracite coal is also being mined. Coal is mined commercially in over 50 countries. Coal was typically mined in remote areas, often mountainous. Coal is mined in the vicinity. Coal was mined from the 16th century. Coal is mined on all continents except Antarctica. Later, coal was also mined here. Mesothermal deposits are often mined for gold. The bulk of diamonds are mined artisanally. Coal is also mined in the Newcastle area. Deposits have also been mined commercially in North Western Mexico. These are the locations where potash is being mined today. Placer deposits were mined out by 1867. Coal is mined in Santa Cruz Province.