Obsidian and Taconite Definition

Definition of Obsidian and Taconite

The general Obsidian and Taconite definition can be stated as: 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. On the other hand, Taconite is a low-grade iron ore which belongs to sedimentary rock and containing about 27% iron and 51% silica. Along with definition of Obsidian and Taconite, get to know about Properties of Obsidian and Taconite. Get to know more information about Obsidian and Taconite origin and discoverer, etymology and class.

History of Obsidian and Taconite

The history of Obsidian and Taconite 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.

Obsidian and Taconite Origin and Discoverer

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

Etymology of Obsidian and Taconite

Along with Obsidian and Taconite definition, know more about the etymology of Obsidian and Taconite. Etymology of Obsidian and Taconite gives information about origin and formation of a particular rock. Know more about Formation of Obsidian and Formation of Taconite. The etymology of Obsidian is From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius while that of Taconite is From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Obsidian belongs to Igneous Rocks while Taconite belongs to Sedimentary Rocks. The sub-class, group and other categories of Obsidian and Taconite are listed below.

For Obsidian,

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

For Taconite,

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