Foordite is a mineral compound that is primarily composed of radioactively altered materials found in granite. It is categorized as a metamict mineral, which means it has undergone significant structural damage due to radiation exposure. Foordite is typically formed as a result of the breakdown of primary uranium minerals, such as uraninite or pitchblende, during the process of radioactive decay.
The mineral displays a distinctive brown to orange-brown color, often exhibiting a resinous or vitreous luster. It can occur in various crystal habits, including rounded grains or irregular masses. Foordite is also known for its relatively high hardness, ranging from 5 to 6 on the Mohs scale.
Due to its radioactive nature, foordite is strictly classified as a hazardous material. It can emit harmful ionizing radiation, which poses health risks such as tissue damage and increased risk of cancer. Consequently, it requires special handling and protective measures when studied or collected.
Foordite has been primarily found in pegmatite veins associated with granitic rocks. It has been documented in several locations worldwide, including the United States, Madagascar, and Namibia.
In summary, foordite is a metamict mineral formed from the alteration of primary uranium minerals through radioactive decay. It is characterized by its brown to orange-brown color, various crystal habits, and hazardous radioactive properties.
