It crystallizes in the monoclinic-prismatic crystal system. It occurs as transparent to translucent orange-brown aggregates of subparallel acicular crystals up to 10 mm in length, and as patches of yellow, fibrous crystals.
It crystallizes in the monoclinic-prismatic crystal system. Transparent to translucent orange-brown acicular crystals, up to 10 mm in length, occur in aggregates alongside yellow, fibrous crystals forming patches.