Vrbaite ( symbol: Vrb) is an opaque to subtranslucent brittle mineral with chemical formula Tl₄Hg₃Sb₂As₈S₂₀ and pyramidal crystals. It is names after Czech mineralogist Karel Vrba [ cs]. It is bluish white with red internal reflections and dark red in translucent thin fragments. It is classified in the class " sulfides and sulfosalts". ^{[1] [2]}

Type locality: Allchar deposit, Ržanovo mine [ mk], Kavadarci Municipality, North Macedonia. ^{[2] [3]}

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