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Hawleyite

Year of discovery: 1955 (Hector-Calumet mine, Canada), 1972 (Japan)

Locality list: 4 localities of hawleyite

• CdS
• α-[Cd²⁺][S]^2-

• Class: Sphalerite group
• Class: Sulfide

• Polymorph: Greenockite (β, Hexagonal)

• Cd => Hg: Metacinnabar (α), Cinnabar, Hypercinnabar
• Cd => Zn: Sphalerite (α), Wurtzite (β)
• Cd => Fe: Rudashevskyite, Troilite
• Cd => Mn: Alabandite (α), Rambergite (β)
• Cd => Ni: Millerite (β)
• Cd => Cu: Covellite

• S => Se: Cadmoselite

• Color: Yellow
• Streak: Pale yellow
• Luster: Metallic
• Diaphaneity: Translucent-Opaque

• Habit: Powder, Crust-like

• Cleavage: No
• Hardness: 2.5-3
• Density: 4.9

• System: Cubic
• Group: (-4)3m, F(-4)3m
• Lattice: a=5.8

Etymology: Prof. James Edwin Hawley (1897-1965), Canadian mineralogist