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Earth lab datasite

Millerite
Sulphide in breccia
nickel sulphide
Ni S
Scale bar = 1 centimetre
cleavage: Perfect rhombohedral
crystal system: Hexagonal
hardness 3.0 - 3.5
relative density 5.3 - 5.6
Merthyr Tydvil, South Wales
24 H 7