Sulphosalt, manganese- arsenic- and antimony- bearing mineral
Specific gravity: 4.181 calculated
Hardness: 4 to 4½
Luboržákite is a relatively new mineral, approved in 2019 and to date (May 2022) reported only from the type
At the type locality, the Vorontsovskoe deposit, Tur'insk, Turya river, Turinsk-Auerbakovsk ore field, Serovsky District, Sverdlovsk Oblast, Russia, luboržákite forms long-prismatic crystals up to 70 × 20 μm and anhedral grains of the same size embedded in the matrix of manganese-bearing dolomite and manganese-bearing calcite. Associated minerals include pyrite, orpiment, realgar, stibnite, aktashite, alabandite, boscardinite, chabournéite, coloradoite, clerite, écrinsite, gold, routhierite, sphalerite and twinnite (MM 84.5.738-745).
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