| A | B |
|---|
| Shaft mines | a network of tunnels that extends deep into the ground, following the veins of ore |
| Open pit mines | miners use giant earthmoving equipment to dig a tremendous pit |
| Strip mines | earth moving equipment scrapes away soil to expose ore |
| Alloy | a solid mixture of two or more metals |
| Smelting | a process where ore is melted to separate the useful metal from other elements the ore contains |
| Gemstone | a hard, colorful mineral that has a brilliant or glassy luster |
| Ore | a rock that contains a metal or economically useful mineral |
| Solution | a mixture in which one substance dissolves in another |
| Vein | a narrow channel or slab of mineral that is much different from the surrounding rock |
| Magma | molten material from the mantle that hardens to form rock |
| Lava | magma that reaches the surface. It also forms rock when it cools & hardens |
