Question

minerals that do not shine like metals but have a dull greasy ,earthy appearance

Answer 1

Answer:

vitreous luster

Vitreous is the most common type of luster.

About 70% of all minerals can exhibit a vitreous luter.

Dull (or Earthy) Luster: A specimen of massive hematite that is non - reflective and would be same to have a dull or earthy luster .

Answer is long but

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