Metamorphic Rocks:
Examples of Metamorphic Rocks
Gneiss:
Hardness: 4-5
Texture: hard,scaly
Color: brown,black,gray
Streak: gray
Texture: hard,scaly
Color: brown,black,gray
Streak: gray
Quartzite:
Hardness: 4 - 4.5
Texture: Hard
Color: pink
Streak: grayish
Texture: Hard
Color: pink
Streak: grayish
Slate
Hardness: 1 - 1.5
Texture: soft
Color: green/gray
Streak: green
Texture: soft
Color: green/gray
Streak: green
Marble
Hardness: 5
Texture: Hard
Color: white/gray
Streak: white
Texture: Hard
Color: white/gray
Streak: white
How do Metamorphic Rocks Form
Metamorphic rocks form from great heat and pressure.
Some Uses of Metamorphic Rocks
- Sculpture
- Building
- Counter tops
- and Floor tiles
Other Facts
Geologists classify Metamorphic Rocks according to the arrangement of the grains that make up the rocks.