Obsidian and Dolomite Definition

Definition of Obsidian and Dolomite

The general Obsidian and Dolomite 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, Dolomite is a sedimentary rock containing more than 50 percent of the mineral dolomite by weight. Along with definition of Obsidian and Dolomite, get to know about Properties of Obsidian and Dolomite. Get to know more information about Obsidian and Dolomite origin and discoverer, etymology and class.

History of Obsidian and Dolomite

The history of Obsidian and Dolomite 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 Dolomite Origin and Discoverer

Obsidian and Dolomite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Obsidian and Dolomite. In this section, you will know about Obsidian and Dolomite Origin and Discoverer. Origin of Obsidian is Ethiopia whereas Origin of Dolomite is Southern Alps, France. It is interesting to know the name of Obsidian and Dolomite discoverer. The Discoverer of Obsidian is Obsius and the discoverer of Dolomite is Dolomieu.

Etymology of Obsidian and Dolomite

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

For Obsidian,

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

For Dolomite,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Not applicable
• Other Categories: Coarse grained rock, Fine grained rock, Medium grained rock and Opaque rock