# data[].attributes.body
They are formed by the cooling molten magma or lava on the Earth's surface.
https://en.wikipedia.org/wiki/Igneous_rock

# data[].attributes.body
They are usually formed in the lava of volcano.

# data[].attributes.body
Obsidian

Pumice

Rhyolite

Andesite

Basalt

Granite

Diorite

Gabbro

Porphyry

Pegmatite

http://www.rocksandminerals4u.com/example_of_igneous_rocks.html

# data[].attributes.body
You can usually find it at the surface of the Earth.

# data[].attributes.body
Igneous Rocks are formed when magma cools and solidifies.

Igneous Rocks can be hard or soft.

There are over 700 different types of Igneous Rocks.

http://www.softschools.com/facts/rocks/igneous_rocks_facts/365/

# data[].attributes.body
Sedimentary rocks are usually formed by layers of sand and mud or other materials.

# data[].attributes.body
Sedimentary Rocks are formed at the surface of the Earth and the sea.

# data[].attributes.body
Travertine

Wackestone

Micrite

Limestone

Gypsum

Ironstone

Taconite

Jaspilite

Cinerite

Marl

Gaize

Tonstein

Siltstone

https://www.eartheclipse.com/geology/formation-types-and-examples-of-sedimentary-rocks.html

# data[].attributes.body
You can find it on the Earth's surface like in the sea, place that's muddy.

# data[].attributes.body
Sedimentary Rocks are important resources that gives us clues about the Earth's past.

Table salt is an example of chemical sedimentary rock.

Chemical sedimentary rocks forms when minerals come out of solution and crystallize.

http://www.sciencekids.co.nz/sciencefacts/earth/sedimentaryrocks.html

# data[].attributes.body
It's formed when there is pressure above it and heat under it.
http://www.bbc.co.uk/bitesize/ks3/science/environment_earth_universe/rock_cycle/revision/5/

# data[].attributes.body
They are usually formed under the sea, inside the Earth.

# data[].attributes.body
Slate

Marble

Quartzite

Phyllite

Schist

Gneiss

Eclogite

Hornfels

Novaculite

Amphibolite

Soapstone

http://www.rocksandminerals4u.com/metamorphic.html

# data[].attributes.body
You can find Metamorphic Rocks where subduction zones have stopped or moved, inside the Earth.

# data[].attributes.body
Most of the Earth's crust is made of metamorphic rocks.

Metamorphic Rocks don't melt even though it's under a heat and pressure.

If there is a serious amount of pressure or heat, stones under  metamorphosis will harden and create new crystals.

http://www.scienceforkidsclub.com/metamorphic-rock.htm

# data[].attributes.body
Basalt

# data[].attributes.body
Limestone

# data[].attributes.body
Slate