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Germanium Sulfide - GeS
Classification: Sulfide
Atomic numbers: 32 & 16
Atomic weight: 104.65
Melting point (C): 530
Boiling point (C):
Density (g/cm3): 3.4-4.0
Refractive index (n=):
Hardness (Mosh-scratch): 4-5
Crystal structure: Hexagonal-rombohedral: (1011) rhomb
Color (solid): Black
Cleavage: Rhombohedral: r(10T1)