igneous rock sentence - igneous rock sentence in Hindi (41-50)

	41.	Its igneous rock consists mostly of pyroxenite and gabbro.
	42.	Also, potassium-argon dating is used to date igneous rocks.
	43.	The extrusive igneous rock equivalent of granite is rhyolite.
	44.	Most major igneous rocks are found along this scale.
	45.	These igneous rocks are some 390 million years old.
	46.	The main type of igneous rock is porphyritic diorite.
	47.	Silica-saturated igneous rocks fall in between these two classes.
	48.	Nephelinite is an example of a silica-undersaturated igneous rock.
	49.	Granite is an intrusive igneous rock, thus not volcanic.
	50.	These minerals formed during the crystallization of igneous rocks.

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