What is Nephelinite?
Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).
from French néphéline, from Greek nephelē
Fine Grained Rock, Opaque Rock
Black, Brown, Green, Grey, White
Decorative Aggregates, Homes, Interior Decoration
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate
Artifacts, Monuments, Sculpture, Small Figurines
Creating Artwork, Soil Conditioner, Source of Magnesia (MgO)
Archaeological Significance
Nephelinite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.
Clinopyroxene, Nepheline, Plagioclase
Biological Weathering, Chemical Weathering, Mechanical Weathering
Chemical Erosion, Water Erosion, Wind Erosion
Deposits in Eastern Continents
Deposits in Western Continents
Deposits in Oceania Continent
Learn more about Properties of Nephelinite
What is Nephelinite? In this section, we will learn more about properties of Nephelinite i.e. physical and thermal properties. Physical properties of Nephelinite include Color, Streak, Hardness, Structure, Cleavage, Fracture, Luster, Specific Gravity etc. The strength of Nephelinite is 35.00 N/mm2. Streak of Nephelinite is white while its cleavage is . Luster of Nephelinite is vitreous to metallic and its fracture is flat. Nephelinite is opaque in nature. Know all about Nephelinite, What is Nephelinite, its composition, features, facts and reserves in next sections.
Know about Composition of Nephelinite
What is Nephelinite composed of? Get to know about composition of Nephelinite here. Nephelinite definition gives information about the Formation of Nephelinite and its composition.The composition of Nephelinite can be further divided into mineral and compound content. The mineral content of Nephelinite rock includes Clinopyroxene, Nepheline, Plagioclase and The compound content of Nephelinite rock includes Ca, CaO, Carbon, Cl, MgO. Almost all rocks undergo transformation process. Know all about Nephelinite rock in next section.