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Which rocks has two different size grains of the same mineral?
Pegmatite is a type of igneous rock that can have two different grain sizes of the same mineral present. This is due to the slow cooling process of the magma, allowing for the growth of large crystals (phenocrysts) within a finer-grained matrix.
How are the particles that make up a conglomerates different from the particles in sandstone or shale?
Conglomerates are composed of larger, rounded particles, while sandstone is made of smaller, well-rounded grains of sand, and shale is formed from very fine-grained particles like clay and silt. The difference in particle size and shape affects the overall texture and strength of these rock types.
What general rock feature does a geologist look for in a sedimentary rock to determine the distance the rock has traveled from its place of origin?
I think you might be referring to what is called textural maturity. It is assumed that a rock with high textural maturity has traveled a longer distance, as high maturity corresponds to more processes acting on the sediment and a longer time between erosion and deposition. Features to look for to determine maturity are grain size sorting, angularity/roundedness, and composition purity. Same-sized grains, round grains, and a single mineral type all indicate high textural maturity (this sediment forming this rock traveled far). A wide range of grain sizes, grains that are jagged, and a lot of different mineral grain types, all point to low textural maturity (this rock formed near it's source). And you can have combinations inbetween.
What kind of sedimentary rock is made of fragments of rocks cemented together by a mineral?
Breccia is the type of sedimentary rock that is made of other fragmented rocks. The mineral that holds the fragments together can be made from the same rock material as the larger fragments, or from a different type of rock entirely.
Are rock and stone the same thing?
No, rock and stone are not the same thing. Rocks are made up of one or more minerals, while stones are small pieces of rock.
What rock is made of rounded grains that are all the same size?
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Are all sand grains made up of the same materials?
No. Sand grains could be a mixture of particles of all sorts of different rock grains. Some sands are mostly quartz grains, some are grains of feldspars, some are gypsum, some are basaltic, and some are combinations of types. Sand can actually be formed from almost any rock type.
Which rocks has two different size grains of the same mineral?
Pegmatite is a type of igneous rock that can have two different grain sizes of the same mineral present. This is due to the slow cooling process of the magma, allowing for the growth of large crystals (phenocrysts) within a finer-grained matrix.
Why does granite stay the same over years?
its a sedimentary rock and contains grains
What did the Romans use grains for?
The Romans used grains for the same reasons that we do. They baked breads, cakes, made cereals and coated meats.The Romans used grains for the same reasons that we do. They baked breads, cakes, made cereals and coated meats.The Romans used grains for the same reasons that we do. They baked breads, cakes, made cereals and coated meats.The Romans used grains for the same reasons that we do. They baked breads, cakes, made cereals and coated meats.The Romans used grains for the same reasons that we do. They baked breads, cakes, made cereals and coated meats.The Romans used grains for the same reasons that we do. They baked breads, cakes, made cereals and coated meats.The Romans used grains for the same reasons that we do. They baked breads, cakes, made cereals and coated meats.The Romans used grains for the same reasons that we do. They baked breads, cakes, made cereals and coated meats.The Romans used grains for the same reasons that we do. They baked breads, cakes, made cereals and coated meats.
When all the grains in a rock are roughly the same size the rock is said to be?
When all the grains in a rock are roughly the same size, the rock is said to be well-sorted. This indicates that the grains were transported and deposited in a consistent manner, usually by wind or water, allowing them to settle according to size. Well-sorted rocks often have higher permeability and porosity compared to poorly sorted rocks.
How are the particles that make up a conglomerates different from the particles in sandstone or shale?
Conglomerates are composed of larger, rounded particles, while sandstone is made of smaller, well-rounded grains of sand, and shale is formed from very fine-grained particles like clay and silt. The difference in particle size and shape affects the overall texture and strength of these rock types.
Is stone made out of rock?
Rock and stone are the same thing.
What is a rock's texture?
The texture of a rock consists of it's grain or mineral crystal size, the arrangement of the grains or crystals, and the degree of uniformity of the grains or crystals. Examples of rock texture would be: * Coarse grained--visible crystals or grains as in granite. * Fine grained--small grains, invisible to the unaided eye as in shale. * Porphyritic--large visible crystals in a fine grained matrix as in granite porphyry. * Schistose--layers of flattened micaceous minerals such as in mica schist. * Foliated--a metamorphic rock texture of parallel mineral banding as in gneiss. * Homogenous--same grain apperance in all directions as in basalt.
What general rock feature does a geologist look for in a sedimentary rock to determine the distance the rock has traveled from its place of origin?
I think you might be referring to what is called textural maturity. It is assumed that a rock with high textural maturity has traveled a longer distance, as high maturity corresponds to more processes acting on the sediment and a longer time between erosion and deposition. Features to look for to determine maturity are grain size sorting, angularity/roundedness, and composition purity. Same-sized grains, round grains, and a single mineral type all indicate high textural maturity (this sediment forming this rock traveled far). A wide range of grain sizes, grains that are jagged, and a lot of different mineral grain types, all point to low textural maturity (this rock formed near it's source). And you can have combinations inbetween.
What kind of sedimentary rock is made of fragments of rocks cemented together by a mineral?
Breccia is the type of sedimentary rock that is made of other fragmented rocks. The mineral that holds the fragments together can be made from the same rock material as the larger fragments, or from a different type of rock entirely.
What are pieces of rock made from the same matter that created planets?
Common minerals like feldspars and metals are pieces of rock that are made from the same matter that created planets
