SCI FUCKING ROCKS

GRANITE

is a coarse-grained, light-colored intrusive igneous rock made mainly of quartz, feldspar, and mica. 

Gabbro

is a coarse-grained, dark-colored, intrusive igneous rock that contains minerals such as feldspar, pyroxene, and sometimes olivine.

Diorite

is a coarse-grained intrusive igneous rock with a mix of feldspar, pyroxene, hornblende, and quartz.

Obsidian

is a dark volcanic glass formed by very rapid cooling of molten rock, preventing crystal formation.

Basalt

is a fine-grained, dark extrusive igneous rock mainly made of plagioclase and pyroxene.

Pumice

is a light-colored, vesicular igneous rock formed by rapid solidification with gas bubbles trapped inside.

conglomerate

 contains large, rounded particles with smaller particles or cement filling the gaps.

Sandstone

is made mostly of sand-sized weathered debris.

Shale

consists of clay-sized particles and typically breaks into thin, flat pieces.

Limestone

is mainly calcium carbonate and forms organically from accumulated shells, coral, algae, and feces.

Iron Ore

forms when iron and oxygen combine in solution and settle as sediment; hematite is the most common iron ore mineral.

Rock Salt (halite)

forms from evaporated ocean or salty lake water and is used in industry and as food seasoning.

Coal

forms mainly from plant debris in swamp environments and is combustible, commonly mined for fuel

Oil Shale

contains organic material called kerogen, from which liquid and gaseous hydrocarbons can be extracted by heating or solvent treatment.

Chalk

s a type of limestone made mostly of calcium carbonate from marine shells and algae, typically white or light gray.