Strunzite (Mn2+Fe3+2(PO4)2(OH)2 · 6H2O) is a light yellow mineral of the strunzite group, first discovered in 1957.

[5] It crystallizes in the triclinic system and has a light, vitreous luster, a specific gravity of 2.52 and a Mohs hardness of 4.

Associated minerals include beraunite, quartz and strengite.

[5] It is named after Hugo Strunz, a Professor of Mineralogy at Technische Universität Berlin.

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