how a Mineral reflect light from its surface?
a . color
b . luster
c . fracture
d . streak

color of a mineral in a powdered form
a . color
b . lustre
c. fractured
d. streak


which is the hardest mineral
A. calcite
b. diamond
c. quartz
d. talc

how is the texture describe if igneous rock has a large crystal and coarse grained?
a . aphanitic
b . allipatic
c. glassy
d. phaneritic
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