Porphyry

Porphyry

Porphyry Definition Porphyry is an igneous rock containing the large crystals known as phenocrysts embedded in a fine-grained matrix. The larger crystals are called phenocrysts.…
St Martin’s Island

St Martin’s Island

St Martin’s Island St Martin’s Island is a small island in the northeast of the bay of bengal, about 9 km south of the Cox’s…
Gastric Glands

Gastric Glands

Gastric Glands Definition Gastric gland is the basic secretory unit of the stomach and contains a variety of component cells located in characteristic locations. It…
Diorite

Diorite

Diorite Definition Diorite is a gray, coarse-grained plutonic rock. Diorite consists mainly of sodium-rich plagioclase and one or more mafic minerals such as biotite, hornblende,…
Brucite

Brucite

Brucite Definition Brucite is the mineral form of magnesium hydroxide, which is occurring in tabular, foliated crystals: used in magnesia refractories. Its chemical formula Mg(OH)2.…
Differences between Equation and Inequation

Differences between Equation and Inequation

Differences between equation and inequation Equations and inequation are both mathematical sentences formed by relating two expressions to each other. We have seen that equations…
Decimals of Thousandths

Decimals of Thousandths

Decimals of Thousandths When we write numbers with thousandths using decimals we use a decimal point and places to the right of this decimal point.…
Salivary Gland

Salivary Gland

Salivary Gland Definition Salivary gland is a gland in terrestrial animals that secretes saliva. In humans, three pairs of large glands, which include the parotid…
Monzonite

Monzonite

Monzonite Definition Monzonite is an igneous rock composed chiefly of plagioclase and orthoclase, with small amounts of amphibole, pyroxene, and biotite. Monzonite contains little or…
Replacement Set and Solution Set in Set Notation

Replacement Set and Solution Set in Set Notation

Replacement Set and Solution Set in Set Notation Replacement Set: It is a set of elements any one of which may be used to replace…
Mumps

Mumps

Mumps Definition Mumps is an acute inflammatory contagious disease caused by a paramyxovirus and characterized by swelling of the salivary glands, especially the parotids, and…
Syenite

Syenite

Syenite Definition Syenite is a light-colored, coarse-grained igneous rock consisting primarily of alkali feldspar together with some mafic minerals, especially hornblende. Unlike most igneous rocks,…
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