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What are veins of extremely coarse grained igneous rocks called?
Veins of extremely coarse-grained igneous rocks are referred to as pegmatites. These veins are formed from the last minerals to crystallize in a cooling magma, resulting in very large crystals. Pegmatites can contain economically valuable minerals such as lithium, beryllium, and rare earth elements.
What rock forms along cracks or in faults?
Veins or dykes of minerals like quartz, calcite, or pyrite can form along cracks or faults in rocks. These mineral veins are known as 'veins' and are the result of precipitation of minerals from hot fluids circulating within the Earth's crust.
Where is fluorite formed?
Fluorite is formed in hydrothermal veins associated with granite and other igneous rocks, as well as in sedimentary rocks and as a primary mineral in some limestones. It can also form as a product of hydrothermal alteration of other minerals such as beryl and topaz.
Where does gold come from and how is it formed in nature?
Gold is formed deep within the Earth's crust through a process called hydrothermal circulation. It is brought to the surface through volcanic activity and can be found in veins or nuggets in rocks.
Are magnesium veins in caves?
Magnesium veins are not typically found in caves. Magnesium is more commonly found in mineral deposits, such as magnesite or dolomite, which are formed through geological processes. While magnesium may be present in the rocks or minerals of a cave, it is not usually in the form of distinct veins.
Is vein a sedimentary rock?
No, veins are not considered sedimentary rocks. Veins are mineral formations that fill fractures in rocks. Sedimentary rocks are formed through the accumulation and compaction of sediments, such as sand, silt, and clay.
Is fluorite an extrusive rock?
No, fluorite is not an extrusive rock. It is a mineral commonly found in hydrothermal veins associated with igneous rocks. Extrusive rocks are formed from lava cooling on the Earth's surface, while fluorite is usually found in veins deep within the Earth's crust.
What are veins of extremely coarse grained igneous rocks called?
Veins of extremely coarse-grained igneous rocks are referred to as pegmatites. These veins are formed from the last minerals to crystallize in a cooling magma, resulting in very large crystals. Pegmatites can contain economically valuable minerals such as lithium, beryllium, and rare earth elements.
What rock forms along cracks or in faults?
Veins or dykes of minerals like quartz, calcite, or pyrite can form along cracks or faults in rocks. These mineral veins are known as 'veins' and are the result of precipitation of minerals from hot fluids circulating within the Earth's crust.
Where is fluorite formed?
Fluorite is formed in hydrothermal veins associated with granite and other igneous rocks, as well as in sedimentary rocks and as a primary mineral in some limestones. It can also form as a product of hydrothermal alteration of other minerals such as beryl and topaz.
Where does gold come from and how is it formed in nature?
Gold is formed deep within the Earth's crust through a process called hydrothermal circulation. It is brought to the surface through volcanic activity and can be found in veins or nuggets in rocks.
When are varicose veins formed?
True varicose veins are formed when the largest superficial veins become distorted and twisted by a long-term rise in blood pressure in the legs.
Are magnesium veins in caves?
Magnesium veins are not typically found in caves. Magnesium is more commonly found in mineral deposits, such as magnesite or dolomite, which are formed through geological processes. While magnesium may be present in the rocks or minerals of a cave, it is not usually in the form of distinct veins.
Are metamorphic rocks naturally formed?
Metamorphic rocks are naturally formed. they are formed from natural changes that happen to other rocks.
What environment is gold found in?
Gold is commonly found in hydrothermal veins, as well as in alluvial deposits formed by the erosion and concentration of gold-bearing rocks. It can also be found in sedimentary rocks, such as conglomerates or sandstone, as small grains or nuggets.
What are green rocks with orange veins called?
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How is sedimenary rocks formed?
Sedimentary rocks are formed from the earths surface when sediments hardens into rocks :]
