Which type of luster is demonstrated by the mineral in the image?
A picture of the mineral pyrite.

a. metallic
b. greasy
c. dull
d.resinous

Question

Which type of luster is demonstrated by the mineral in the image?
A picture of the mineral pyrite.

a. metallic 
  b. greasy 
  c. dull 
   d.resinous

anonymous · Answer

i think it's (a) or (d) but i'm not sure

anonymous · Answer

u can ask someone else

anonymous · Answer

Suppose you have an unknown mineral sample. You can scratch the mineral with a pen knife but not with your fingernail. The mineral is most likely

  a.talc 
  b. diamond 
   c. apatite 
   d.gypsum

zale101 · Answer

so from the pic you showed, 
Talc and gypsum can be scratched with finger nails easily
diamond is so hard it can never be scratched with a pen knife
apatite can be scratched with a pen knife
so apatite is the answer