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