1. Which mineral property is easily observed, but can be unreliable when it comes to mineral identification?
streak
color
cleavage
hardness
2. Which mineral property describes a mineral’s resistance to being scratched?
streak
fracture
hardness
cleavage
3. A rock containing valuable minerals that can be mined is called __________.
an organic compound
an inorganic compound
an igneous rock
an ore
4. What are elements that lose electrons and form positive ions classified as?
ores
minerals
metals
nonmetals
5.To which of the six crystal systems does a halite crystal (rock salt) belong?
orthorhombic
monoclinic
tetragonal
cubic
PLZ HELP ASAP i will mark brainliest to the person who answers
