It contain Iron (Fe) or magnesium (Mg) and is dark in color.

It contain potassium (k) or sodium (Na) and aluminum (Al) and is a light color.

Minerals have unique bright colors an are commonly used for jewelry.

It dissolves the soluble mineral present in rocks.

It facilitates the oxidation process in the presence of water in some metallic minerals.

It is a dip-slip  fault in which the rocks above the fault plane have moved relative to the rock below.

It consists of large crystals and likely formed far below the surface of the Earth

They formed when molten rock is ejected by a volcano into the atmosphere causing the lava to cool instantly.  

He Created a map of the Earth by Fitting the continents into one.

The continents were joined together into one Super continent known as.

In this era, the first amphibians emerged from the ocean and live on land.

In this era, the supercontinent Pangaea began to separate, forming the rocky mountains.

In this era, Mammals became the dominant species  and the first primates evolved. 

The First organism was created during Precambrian time.

Formed from the solidification of lava when a volcano erupts.