Rock Types

Rock Cycle

The Rock Cycle is the process that take many years, and during this process the rocks change their shape and composition. When magma comes out of the volcano, it's called lava. Then lava gets cold and became a Igneous rock. Igneous rock can be of two types - intrusive that has big crystals and extrusive that have small crystals. Igneous rock that affected by weathering and erosion broke into sediments. Then sediments come through processes that called compaction and cementation, and became a Sedimentary rock. Sedimentary rock are made up of three types - clastic that is formed by cold lava, bioclastic that is formed by death organisms, and crystalline that is formed by the minerals from a water solution. Metamorphic rock is formed by heat and pressure of other rocks, and divided by two types - fiolated that has layers and non fiolated that has no layers.

Rocks
Igneous rock
rock that formed by cooling of magma/lava

Sedimentary rock
rock that formed by compaction and cementation of sediments







Metamorphic rock
rock that formed by heat and pressure of other rocks








Magma/Lava
melting rock inside/outside of the volcano

Solidification
the rock gets cool and hard

Weathering & Erosion rock broke by wind and water into sediments





  
Sediments
small pieces of rocks






 
Compaction & Cementation
when rocks come together and glue together






Rock Types

Igneous rocks:

Intrusive
form inside of the earth and has big crystals
 

Extrusive
form outside of the earth and has small crystals








Sedimentary rocks:

Clastic
form from rock pieces

Crystalline
form from liquid minerals

Bioclastic
form from death organisms










Metamorphic rocks:

Foliated
has layers

Non-Foliated
has no layers