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Dolerite rocks are a type of igneous rocks (formed as a result of cooling of magma or lava). They are mafic (45-52% SiO2), and subvolcanic (formed within the earth's crust). Within this characterisation there is considerable variation. Please see the link.
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∙ 10y ago
Wiki User
∙ 15y agoDolerite is an Igneous rock formed below the Earth's surface, it is a form of basalt containing relatively little silica
Wiki User
∙ 14y agoBuilding material, concrete aggregate, paving stone
Wiki User
∙ 16y agoDolerite is an igneous rock :)
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What are four Mafic Igneous rocks?
The four I know of are: gabbro, basalt, peridotite, and dolerite.
What is a dolerite dyke?
Dolerite is coarse grained variety of basalt, if present in the dorm of a dyke (discordent igneous body), it is called a dolerite dyke.
How are sills and dikes arranged in relation to the surrounding rocks?
Igneous rock makes dikes and sills. Basalt or Diabese Dikes are actually usually composed of dolerite.
Is dolerite magnetic?
Yes, it can be.
What is the fine grained equivalent of gabbro?
Dolerite
What does dolerite mean?
A dolerite occurs in dikes and sills. These are dark, medium-grained igneous rocks that are typically containing olivine, plagioclase, and pyroxene.
What are four igneous rocks?
The four I know of are: gabbro, basalt, peridotite, and dolerite.
What are four Mafic Igneous rocks?
The four I know of are: gabbro, basalt, peridotite, and dolerite.
Dolerite and gabbro are both igneous rocks Dolerite has crystals about 1 mm across and gabbro has crystals about 5 mm across What does this indicate about the formation of these rocks?
In comparison to the slower cooled magma that created the gabbro, the dolerite has formed closer to the surface. This means that there was less time for crystal growth before it cooled into rock, resulting in the difference in crystal size between the two.
Is Dolerite Rock rough or smooth?
Dolerite is very rough.
What is a dolerite dyke?
Dolerite is coarse grained variety of basalt, if present in the dorm of a dyke (discordent igneous body), it is called a dolerite dyke.
How are sills and dikes arranged in relation to the surrounding rocks?
Igneous rock makes dikes and sills. Basalt or Diabese Dikes are actually usually composed of dolerite.
Is dolerite magnetic?
Yes, it can be.
Dolerite rock where?
Dolerite also called "Rowley Rag" can be found in Rowley Regis,West Midlands,England.
How was the Dolerite Ball used in Ancient Egypt?
It wuz used for pounding into a rock. the dolerite ball was very. very hard.
Is conglomerate intrusive or extrusive?
Neither. Conglomerate is a sedimentary rock. Intrusive and extrusive are descriptive terms used to classify igneous rocks.
What is dolerite made out of?
Igneous Rock :)
