The Group’s Hard Rock
San Domingo, located outside of Phoenix in Arizona.
Hard Rock Lithium Deposits are also known as Pegmatite deposits. Pegmatite is a coarse-grained intrusive igneous rock formed from crystallized magma below the Earth's crust. Pegmatite lithium deposits can contain extractable amounts of a number of elements, including lithium, tin, tantalum and niobium.
Lithium in pegmatites is most commonly found in the mineral spodumene, but also may be present in other minerals such as petalite, lepidolite, amblygonite and eucryptite.
San Domingo is a lithium pegmatite project located in the Maricopa and Yavapai counties, Arizona. It was historically mined for lithium in the 1940’s and 50’s. Access to the project locations is via a dirt road 7 miles from Arizona Highway 74 that connects Wickenburg and Phoenix.