Weeksite

Weeksite

Weeksite is a rare uranium mineral that was first discovered in 1956 in the Black Hills region of South Dakota, United States. It is named after Alice Mary Dowse Weeks, a mineralogist and crystallographer who made significant contributions to the field of mineralogy.

Description

Weeksite is a hydrated potassium uranium silicate mineral with the chemical formula K₂(UO₂)₂Si₆O₁₅·4H₂O. It is typically yellow to greenish-yellow in color and exhibits a vitreous to pearly luster. The mineral is known for its distinct monoclinic crystal system and its perfect cleavage in one direction.

Occurrence and Formation

Weeksite is typically found in uranium-bearing pegmatites and hydrothermal veins. It is often associated with other uranium minerals such as uranophane, kasolite, and becquerelite. Notable localities for weeksite include the Black Hills region of South Dakota, the Thomas Range in Utah, and the Shinkolobwe mine in the Democratic Republic of the Congo.

Health Risks

Due to its uranium content, weeksite is radioactive and can pose health risks if not handled properly. Prolonged exposure to the mineral can lead to radiation sickness, cancer, and other health complications. Therefore, it is important to handle weeksite with care and to follow safety guidelines when dealing with radioactive minerals.

See Also

• List of minerals
• Uranium mining
• Radioactivity