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Ultramafic rocks are made of ferromagnesian minerals.
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∙ 13y ago
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How do ferromagnesian minerals differ from other rock forming minerals?
These minerals are usually dark in color, Ferromagnesian Minerals minerals are also denser than other rock-forming minerals.Resources: Science Impact Integrated Science Third Edition (Academe) pp.73
How would you distinguish among granite gabbro and diorite?
Gabbros is formed of course grained ferromagnesian minerals and gray plagioclase feldspar it can be identified on the basis of cleavage and with practice verifies that no quartz is present. Diorite is composed of feldspar and significant amounts of ferromagnesian minerals. The mineral can be identified and their percentages estimated to indicate diorite. Granite is a coarse grained (the grains are larger than 1 millimeter) rock composed of predominantly of feldspar and quartz, is an intrusive rock.
Is marble a mineral?
Marble is composed mainly of the mineral calcite, but because of the presence of other minerals, marble is a rock, not a mineral.
What makes up most of the earth's contnental crust?
The crust is mainly composed of rock. The rock of the crust is composed of silicon minerals. It also has great rates of oxygen in it.
What kind of a mineral is chert?
Chert is actually not a mineral. Chert is a type of sedimentary rock that is made up of many minerals. It is composed mainly of the minerals chalcedony and quartz.
How do ferromagnesian minerals differ from other rock forming minerals?
These minerals are usually dark in color, Ferromagnesian Minerals minerals are also denser than other rock-forming minerals.Resources: Science Impact Integrated Science Third Edition (Academe) pp.73
Basaltic magma forms what kind of igneous rock?
Mafic igneous rock. ( due to Ferromagnesian minerals).
How would you distinguish among granite gabbro and diorite?
Gabbros is formed of course grained ferromagnesian minerals and gray plagioclase feldspar it can be identified on the basis of cleavage and with practice verifies that no quartz is present. Diorite is composed of feldspar and significant amounts of ferromagnesian minerals. The mineral can be identified and their percentages estimated to indicate diorite. Granite is a coarse grained (the grains are larger than 1 millimeter) rock composed of predominantly of feldspar and quartz, is an intrusive rock.
Is marble a mineral?
Marble is composed mainly of the mineral calcite, but because of the presence of other minerals, marble is a rock, not a mineral.
What makes up most of the earth's contnental crust?
The crust is mainly composed of rock. The rock of the crust is composed of silicon minerals. It also has great rates of oxygen in it.
What type of rock is red sandstone?
Redsandstone (sometimes known as arenite) is a clastic sedimentary rock composed mainly of sand-sized minerals or rock grains.
What is sandstone comprised of?
Sandstone is a sedimentary rock composed mainly of sand-size mineral or rock grains. Most sandstone is composed of quartz or feldspar because these are the most common minerals in the Earth's crust.
What kind of a mineral is chert?
Chert is actually not a mineral. Chert is a type of sedimentary rock that is made up of many minerals. It is composed mainly of the minerals chalcedony and quartz.
What parts make up a rock?
Rocks are composed of various minerals or cemented remains of other rock particles which are composed of minerals.
Is basalt an element a mineral or a rock?
Basalt is a rock composed of minerals which are composed of elements.
What rock are usually composed of?
Minerals! Rocks are made of minerals
What is ferromagnesian rocks?
ferromagnesian rocks are dark coloured rocks with high melting point and high specific gravity. they are basic rocks that consists of the elements like iron and magnessium, and are made up of mostly the olivine and pyroxene minerals. ferromagnesian rocks are formed from the earths interior espesially within the mantle. they include gabbro, basalt and peridotite.
