Silver arsenic sulfide, typically orange-yellow to reddish-brown, darkens on light exposure. It's associated with transformation and insight but is toxic due to arsenic.
Orange-Yellow, Reddish-Brown, Lemon-Yellow, Darkens on exposure to light, forms tabular or prismatic crystals
Xanthoconite is classified as a sulfosalt mineral mineral which typically crystallizes in the monoclinic system. Its chemical formula is Ag3AsS3.