Lussierite
Lussierite is a rare uranium-bearing mineral with the chemical formula sodium ten times [(uranyl) sulfate four] sulfate two water three. It belongs to the monoclinic crystal system and is classified as a uranyl sulfate hydrate. This mineral is notable for its radioactive properties and its complex chemical composition, which includes uranyl ions, sulfate groups, and water molecules. Lussierite typically exhibits a yellow to brown color, a vitreous luster, and a relatively low hardness on the Mohs scale. Its density is moderate, and it is primarily of interest to mineralogists due to its unique chemistry and classification within the sulfate mineral group.
Overview
Lussierite is a rare uranium-bearing mineral with the chemical formula sodium ten times [(uranyl) sulfate four] sulfate two water three. It belongs to the monoclinic crystal system and is classified as a uranyl sulfate hydrate. This mineral is notable for its radioactive properties and its complex chemical composition, which includes uranyl ions, sulfate groups, and water molecules. Lussierite typically exhibits a yellow to brown color, a vitreous luster, and a relatively low hardness on the Mohs scale. Its density is moderate, and it is primarily of interest to mineralogists due to its unique chemistry and classification within the sulfate mineral group.
Etymology
Lussierite is named after Aaron J. Lussier, in recognition of his contributions to mineralogy. The mineral was officially approved by the International Mineralogical Association (IMA).
How to recognize it
Lussierite can be identified by its yellow to brown color and vitreous luster. It has a relatively low hardness, though the exact Mohs value is not specified. Its streak and density are not provided, but its color and luster are distinctive. Due to its rarity and complex chemistry, it is not commonly confused with other minerals, though its identification may require specialized analytical techniques.
Trivia
Lussierite is notable for its complex chemical formula, which includes uranyl ions and multiple sulfate groups. It is a rare mineral, with only a few known localities worldwide. Its name honors Aaron J. Lussier, reflecting the personal connection in its discovery and classification.