Banded iron formation and Obsidian Definition

Definition of Banded iron formation and Obsidian

The general Banded iron formation and Obsidian definition can be stated as: Banded iron formation are distinctive units of sedimentary rock that are almost always of Precambrian age. On the other hand, Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. It is produced when felsic lava extruded from a volcano cools rapidly with minimum crystal growth. Along with definition of Banded iron formation and Obsidian, get to know about Properties of Banded iron formation and Obsidian. Get to know more information about Banded iron formation and Obsidian origin and discoverer, etymology and class.

History of Banded iron formation and Obsidian

The history of Banded iron formation and Obsidian gives information about where the rock was found and who was its discoverer. Almost each and every aspect of Earth's history is recorded in rocks be it the volcanoes which were erupted or the plants, animals and organisms which are now extinct, as rocks are present from millions of years.

Banded iron formation and Obsidian Origin and Discoverer

Banded iron formation and Obsidian definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Banded iron formation and Obsidian. In this section, you will know about Banded iron formation and Obsidian Origin and Discoverer. Origin of Banded iron formation is Western Australia, Minnesota whereas Origin of Obsidian is Ethiopia. It is interesting to know the name of Banded iron formation and Obsidian discoverer. The Discoverer of Banded iron formation is Johann Gottlob Lehmann and the discoverer of Obsidian is Obsius.

Etymology of Banded iron formation and Obsidian

Along with Banded iron formation and Obsidian definition, know more about the etymology of Banded iron formation and Obsidian. Etymology of Banded iron formation and Obsidian gives information about origin and formation of a particular rock. Know more about Formation of Banded iron formation and Formation of Obsidian. The etymology of Banded iron formation is From its formation process while that of Obsidian is From its formation process. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Banded iron formation belongs to Sedimentary Rocks while Obsidian belongs to Igneous Rocks. The sub-class, group and other categories of Banded iron formation and Obsidian are listed below.

For Banded iron formation,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group:
• Other Categories: Coarse grained rock and Opaque rock

For Obsidian,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Volcanic
• Other Categories: Opaque rock