| A | B |
|---|
| mineral | any of the naturally occurring solid material of Earth's crust |
| crystal | a solid that has a structure arranged in orderly, fixed pattern |
| igneous rock | rock that forms when melted rock in the form of lava or magma cools and turns into a solid |
| sedimentary rock | a rock that forms when small pieces of rock, minerals, and shells are deposited, buried, and are squeezed and cemented together |
| metamorphic rock | a rock that forms from other rocks which have changed from heat, pressure, or chemical reaction |
| rock cycle | the process in which rocks continuously change from one kind into another over long periods of time |
| cleavage | _______________ is when a mineral breaks along flat surfaces |
| Mohs'scale | a scale of hardness to compare minerals to one another |
| properties | color, texture, and crystal structure make up the _____________ of minerals |
| luster | the way that a mineral reflects light |
| streak | the color of a mark left when a mineral is rubbed against a hard, rough surface |
| rock | a naturally formed solid material made up of one or more minerals |
| metamorphic | sedimentary and igneous rock can become _______________ rock under high temperature and pressure |
| igneous | __________ rock may be dark in color and heavy; granite and obsidian |
| sedimentary | ______________ rocks may be light in color and weight; shale and limestone |
| Metamorphic | ______________ rock are recognized by banded light and dark colors; layered ex. marble and slate |
