wakabayashilite

{{Infobox mineral | name = Wakabayashilite | category = Arsenic sulfide, Sulfosalt mineral | boxwidth = | boxbgcolor = | image = Wakabayashilite-Calcite-176729.jpg | imagesize = 260 | caption = Wakabayashilite on calcite | formula = | IMAsymbol = Wak | molweight = 1291.8 gram/mol | strunz = 2.FA.40 | system = Orthorhombic | class = Pyramidal (mm2) H-M symbol: (mm2) | symmetry = Pna21 | unit cell = a = 25.262 Å, b = 14.563 Å c = 6.492 Å and V = 2388.4 Å3; Z = 4 | color = Golden yellow, lemon yellow, orange yellow | habit = Fibrous | twinning = | cleavage = {100} Perfect, {010} Perfect and {101} Perfect | fracture = | tenacity = | mohs = 1.5 | luster = Silky | refractive = | opticalprop = | birefringence = | pleochroism = Strong | streak = Orange, yellow | gravity = 3.98 | density = | melt = | fusibility = | diagnostic = | solubility = | diaphaneity = Translucent | other = | references = }}

Wakabayashilite is a rare arsenic, antimony sulfide mineral with formula .