Category Archives: Geology

List of Rock Types


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How Minerals Form ?

Minerals can form on the surface through evaporation of solutions containing dissolved minerals. Minerals can form beneath the surface when dissolved elements and compounds leave a hot water solution or when materials melted in magma/ lava then cools & hardens.

Mineral Formation 1

Mineral Formation 2

Mineral Formation 3

Mineral Formation 4

Mineral Formation 5

Mineral Formation 6

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How Many Types of Minerals are there on Earth ?

 3800 Minerals

There are approximately 3800 known minerals. About 30 to 50 new minerals are described and one or two minerals are discredited each year. The most complete listing of minerals is J. Mandarino Fleischer’s Glossary of Mineral Species 1999 published by the Mineralogical Record.


How Many Minerals are there on Earth

Common Minerals

Minerals of the World

How are Islands formed ?

As volcanoes erupt, they build up layers of lava that may eventually break the water’s surface. When the tops of the volcanoes appear above the water, an island is formed. While the volcano is still beneath the ocean surface, it is called a seamount. Oceanic islands can form from different types of volcanoes.