The rare lead silicate mineral yangite, previously only known from the Kombat Mine, Namibia, has been identified in a Långban sample (Canberra stope), in the collection of the Swedish Museum of Natural History. It occurs as elongated whitish crystals in aggregates up to 2 mm, associated with melanotekite, jagoite and quartz. The monoclinic unit-cell parameters obtained from powder X-ray diffraction data are a = 9.597(2), b = 7.281(2), c = 7.968(2) Å, α = 106.03(1)°, β =118.14(1)°, γ = 109.85(1)° and V = 392.7(1) Å^3.