Scientific Name: Lead molybdate
Group: Molybdates
Chemical composition: PbMoO4
Colors: Yellow, orange, red
Hardness: 2.5 to 3
Formation: Tetragonal crystals; Square tabular and prismatic form
Principal Sources: Mexico; Slovenia; Zambia; China; Arizona, USA
Special Notes: Wulfenite is named for Franz Xavier von Wulfen, an Austrian mineralogist. It is found in many localities, associated with lead ores as a secondary mineral associated with the oxidized zone of lead deposits. It is also a secondary ore of molybdenum, and is sought by collectors. Arizona is a key locality for fine wulfenite crystals.