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diorite's Usage Examples:

synonym for quartz diorite.

However the current IUGS classification defines tonalite as having greater than 20% quartz, while quartz diorite varies its quartz.

A foliated Perelle quartz diorite (also called Perelle Gneiss), occurs in the centre and west of the island.

Quartz diorite is an igneous, plutonic (intrusive) rock, of felsic composition, with phaneritic texture.

examples of subvolcanic rocks are diabase, quartz-dolerite, micro-granite and diorite.

Typical intermediate rocks include andesite, dacite and trachyandesite among volcanic rocks and diorite and granodiorite among plutonic rocks.

rocks of batholith include granite, leucogranite, tonalite, granodiorite, diorite, gabbro and mafic dykes.

the more costly exotic diorite was used.

Unlike the local stone, diorite is extremely hard, and so difficult to carve.

felsic or intermediate rock types, such as granite, quartz monzonite, or diorite (see also granite dome).

Diorite – Intermediate intrusive igneous rock composed principally of plagioclase feldspar Napoleonite, also known as corsite – A variety of diorite with.

such as diorite which contain a moderate amount of silica and related volcanics such as andesite.

Oligoclase is common in granite, syenite, diorite, and.

An unusually homogeneous form of the rock diorite is sometimes called markfieldite because it is found in the village.

observed to transition into diorite by changes in the mineral content and texture.

Layered gabbro has also been changed into diorite at Le Nez point, the southernmost.

It is a dome of exposed granite (specifically a quartz diorite to granodiorite) of Devonian age, which has intruded into the gneiss of.

alkali feldspar is a syenite whereas one with more plagioclase is a quartz diorite.

Andesite is the extrusive equivalent of plutonic diorite.

texts of around 2300 BC and existed to 550 BC as a source of copper and diorite for Mesopotamia.

In geological terms, black granite might be gabbro, diabase, basalt, diorite, norite, or anorthosite.

diorite's Meaning':

a granular crystalline intrusive rock