Dacite and Obsidian Definition

Definition of Dacite and Obsidian

The general Dacite and Obsidian definition can be stated as: Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite. 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 Dacite and Obsidian, get to know about Properties of Dacite and Obsidian. Get to know more information about Dacite and Obsidian origin and discoverer, etymology and class.

History of Dacite and Obsidian

The history of Dacite 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.

Dacite and Obsidian Origin and Discoverer

Dacite and Obsidian definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Dacite and Obsidian. In this section, you will know about Dacite and Obsidian Origin and Discoverer. Origin of Dacite is Romania and Moldova, Europe whereas Origin of Obsidian is Ethiopia. It is interesting to know the name of Dacite and Obsidian discoverer. The Discoverer of Dacite is Unknown and the discoverer of Obsidian is Obsius.

Etymology of Dacite and Obsidian

Along with Dacite and Obsidian definition, know more about the etymology of Dacite and Obsidian. Etymology of Dacite and Obsidian gives information about origin and formation of a particular rock. Know more about Formation of Dacite and Formation of Obsidian. The etymology of Dacite is From Dacia, a province of the Roman Empire which lay between the Danube River and Carpathian Mountains where the rock was first described while that of Obsidian is From Dacia, a province of the Roman Empire which lay between the Danube River and Carpathian Mountains where the rock was first described. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Dacite and Obsidian belong to Igneous Rocks. The sub-class, group and other categories of Dacite and Obsidian are listed below.

For Dacite,

• Sub-class: Durable Rock and Soft Rock
• Group: Volcanic
• Other Categories: Fine grained rock, Medium grained rock and Opaque rock

For Obsidian,

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