laendurite

Laendurite is a rare mineral belonging to the phosphate group. Its chemical formula is approximately CaMg2(PO4)2. Laendurite is characterized by its vitreous luster and typically occurs in fine-grained, massive forms. It is usually pale yellow to greenish in color. The mineral was first discovered in the Lueshe mine in the Democratic Republic of Congo. It is named in honor of L. D. Landa, a geologist who contributed to the study of phosphate minerals. Laendurite is found in association with other phosphate minerals, such as vivianite and ludlamite, within pegmatitic rocks and hydrothermal veins. Its geological occurrence is limited, making it a mineral of interest for collectors and researchers. The crystal structure of laendurite is monoclinic. While not economically significant, its discovery provides insights into the complex mineralogy of rare earth element-bearing deposits.