Unit 4, Part 2 Review

A mineral's resistance to fractures of scratches describes the mineral's ______________.

• Density
• Transparency
• Color
• Hardness

This is the color a mineral leaves behind after being dragged across a surface (usually porcelain).

• Trace color
• Scratch color
• Mark color
• Streak color

The way the light interacts with the surface of a crystal, rock, or mineral.

• Transparency
• Luster

• Hardness
• streak

When minerals break on specific planes (places in the rock).

• Cleavage

• Disintegration
• Splitting
• Fracture

_______________ describes the separation of a material into two, or more, pieces under the action of stress.

• Fracture
• Division
• Break
• Split

The mineralized remains of plants or animals. Most often found in sedimentary rocks.

• Rock
• Mineral
• fossil

• Streak

When layers of rock within rock have different characteristics than the layers surrounding it.

• Rock Strata

• Streak

• Minerals

• Crystals

A solid substance composed of minerals

• rock
• stone
• pebble
• boulder

The type of rock formed by the cooling of molten magma.

• Volcanic rock
• Metamorphic rock
• Igneous rock
• Sedimentary rock

Type of rock formed when they are subjected to higher temperatures and pressures which changes its mineral makeup.

• Igneous rock
• Sedimentary rock
• Volcanic rock
• Metamorphic rock