The general Obsidian and Norite 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, Norite is a mafic intrusive igneous rock composed largely of the calcium-rich plagioclase labradorite, orthopyroxene, and olivine. Along with definition of Obsidian and Norite, get to know about Properties of Obsidian and Norite. Get to know more information about Obsidian and Norite origin and discoverer, etymology and class.
The history of Obsidian and Norite 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 Norite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Obsidian and Norite. In this section, you will know about Obsidian and Norite Origin and Discoverer. Origin of Obsidian is Ethiopia whereas Origin of Norite is Norway. It is interesting to know the name of Obsidian and Norite discoverer. The Discoverer of Obsidian is Obsius and the discoverer of Norite is Unknown.
Along with Obsidian and Norite definition, know more about the etymology of Obsidian and Norite. Etymology of Obsidian and Norite gives information about origin and formation of a particular rock. Know more about Formation of Obsidian and Formation of Norite. The etymology of Obsidian is From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius while that of Norite 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 and Norite belong to Igneous Rocks. The sub-class, group and other categories of Obsidian and Norite are listed below.
For Obsidian,
For Norite,
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