Marićite from the Rapid Creek area of northern Yukon , Canada. Held in the A. E. Seaman Mineral Museum . — Photo: Chris857 · CC BY-SA 3.0
Marićite
Marićite is an IMA-recognized mineral species in the phosphate class, with the chemical formula NaFe²⁺(PO₄).
It crystallizes in the orthorhombic crystal system (space group Pmnb).
Key properties: Mohs hardness 4–4.5; specific gravity 3.66; White streak; Vitreous luster; refractive index 1.69; optically biaxial.
IMA symbol Mrć, IMA status: approved, named in 1976.
Found in phosphatic nodules in sideritic ironstones.
It is found associated with Ludlamite, vivianite, quartz, pyrite, wolfeite, apatite, wicksite, nahpoite, satterlyite.
The mineral was named to honor Dr. Luka Marić (1899–?), Professor of Mineralogy and Petrology, University of Zagreb, Croatia.