Molybdenite. Henderson Mine, Colorado, USA




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250µm


A molybdenite veinlet cross-cuts quartz (dark grey, internal reflections, bottom). Individual molybdenite laths show their basal cleavage along (0001) and bireflectance and reflection pleochroism (light grey when east-west and dark grey-brown when north-south).


Polished block, plane polarized light, x 80, air



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