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

Answer 1

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

Answer 2

u can ask someone else

Answer 3

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

Answer 4

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