Mineral Point, Wisconsin his family who settled a few miles away from Mineral Point. During the following year, large quantities of galena, or lead ore, were discovered around the settlement in shallow deposits. Lead had many uses at the time, and settlers began to flock to the region hoping to make a living by extracting the easily accessible mineral. Lead deposits extended throughout an area that also included Dubuque, Iowa and Galena, Illinois, but Mineral Point became the center of lead mining operations within the bounds of present-day Wisconsin (then part of Michigan Territory). By 1829, the region's growing population led to the
Heavy mineral sands ore deposits zircon, monazite, rutile, sometimes tungsten, and some ilmenite is usually granite. The source of ilmenite, garnet, sapphire and diamond is ultramafic and mafic rocks, such as kimberlite or basalt. Garnet is also sourced commonly from metamorphic rocks, such as amphibolite schists. Precious metals are sourced from ore deposits hosted within metamorphic rocks. The accumulation of a heavy mineral deposit requires a source of sediment containing heavy minerals onto a beach system in a volume which exceeds the rate of removal from the trap site. For this reason not all beaches which are supplied by sands containing heavy minerals will form