| A | B |
|---|
| What 3 basic kinds of rocks are there? | Igneos, Sedimentary, Metamorphic |
| What are the seven ways to identify minerals? | color, luster, hardness, streak, density, crystal shape,and breakage |
| What 2 types of breakage are there? | cleavage and fracture |
| Where do most minerals come from? | Magma |
| What are gemstones? | Hard, beautiful, durable minerals that can be cut then polished and used for decoration. |
| What are the rarest and most valuble gemstones? | diamonds, rubies, sapphires, and emeralds |
| What are the semiprecious stones? | amethists, zircons, garnets, turquoises, and tourmalines |
| What type of rocks are pumice and obsidian? | igneous |
| What types of rocks are shale and puddingstone? | sedimentary |
| What types of rocks are shale-slate and granite-gneiss? | metamorphic |
