Igneous Rocks

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Igneous rock is shaped via the cooling and solidification of magma or lava. The magma may be derived from partial melts of existing rocks in both a planet’s mantle or crust.

Diabase or Dolerite

Diabase, also known as dolerite, is a type of igneous rock that holds significance in the field of geology due to its unique characteristics...


Monzonite is a type of igneous rock that falls within the category of intrusive or plutonic rocks. It is primarily composed of minerals such...


Anorthosite is a type of igneous rock that is primarily composed of a mineral called plagioclase feldspar. It is known for its distinctive light-colored...

Volcanic Bomb

Volcanic bomb is pyroclastic rock that is a cooling of a mass of lava it flies thorough the air after eruption. If it is...
Phenotrachytic welded tuff


Tuff rock, also simply known as "tuff," is a type of sedimentary rock that forms from the consolidation of volcanic ash and other volcanic...


Scoria is a type of volcanic rock that forms from the solidification of molten lava. It is commonly found around and on the surface...


Pumice is a volcanic rock that consists of highly vesicular rough textural rock glass. It generally light colored. It is created when gas-saturated liquid...
Camptonite lamprophyre (Mesozoic, 100-200 Ma; Campton Falls, Grafton County


Lamprophyre is ultrapotassic igneous rock that is occurring as dikes, lopoliths, loccoliths, stocks and small intrussion. It is alkaline silica-undersaturated mafic or ultramafic rocks...


Kimberlite is an igneous rock that major source of diamonds. Kimberlite is a variety of peridotite.  It is rich in mica minerals content and...
Pyroxenite (Stillwater Complex, Neoarchean)


Pyroxenite is an ultramafic igneous rock that contain pyroxene group minerals such as augite, diopside, hypersthene, bronzite or enstatite. This is a coarse-grained rock...
Alkaline Pegmatite Rock have large crystal size minerals in it.


Pegmatite is an igneous rock that form end of the stage a magma’s crystallization. Pegmatites contain exceptionally large crystals and they contain rarely minerals than other types of rocks. They have interlocking crystals usually larger than 2.5 cm in size. Generally most Pegmatites are found in sheets of rock that are dikes and veins Also near large masses of igneous rocks called batholiths.


Diorite is coarse – grained intrusive igneous rock that commonly mineralogy is plagioclase feldspar and dark colored minerals such as hornblende and biotite.It usually occurs dikes, sills and intrusions with continental crust . Diorite is usually grey to dark-grey in colour, but it can also be black or bluish-grey, and frequently has a greenish cast.