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Which features tells you how large the grains of a sedimentary rock are?
The size of the grains in a sedimentary rock can be determined by examining the texture of the rock. Coarser grains indicate a larger grain size, while finer grains indicate a smaller grain size. Other features that can provide clues to grain size include the sorting (uniformity of grain sizes) and rounding of the grains.
What sedimetary rock has the smallest grain size?
Shale is a sedimentary rock that typically has the smallest grain size due to its fine-grained and compacted nature.
Does obsidian have a large grain size or a small grain?
Obsidian has a small grain size due to its volcanic origin, which means that it cools quickly and does not have time to form large crystals. It is typically fine-grained and exhibits a glassy appearance.
How does texture affect grain size in rock?
It doesn't. The grain size effects the texture. If a rock has a small grain size, it will have a smooth texture. If the grain size is large, such as pebbles, the texture will be rough. For example, siltstone is one of the smoothest rocks because it contains silt particles, which are .0004cm to .006cm. Conglomerate though contains various particles including cobbles and boulders, which are from 10cm to 100cm.
What is quartzite made of?
Quartzite is a metamorphic rock primarily composed of quartz, a mineral made up of silicon and oxygen atoms. It forms when sandstone is subjected to heat and pressure, causing the sand grains to recrystallize into a denser, more durable rock.
What is grain size of quartzite?
it is small depending on the colors
What is the grain shape of quartzite?
jagged
Why is sandstone porous and quartzite not?
Sandstone is porous because it is made up of compacted grains of sand held together by cemented minerals. Quartzite, on the other hand, is a metamorphic rock formed from sandstone that has undergone intense heat and pressure, causing the grains to recrystallize and fuse together, making it non-porous.
What is obsidian's grain size?
there is no visible grain size
What is the grain size of dacite?
Small to medium grain size.
What term has the definition of grain size?
Particle size is another name for the term grain size.
What is slate's grain size?
Slaet in grain size is the size of sand crystals.
What is a nickname for quartzite?
Quartzite is often referred to as "quartzite rock" or simply "quartzite." It is a metamorphic rock that is composed primarily of quartz grains.
How big is one grain?
The size of a grain can vary depending on the type, but generally, a grain is around 1-3 millimeters in size. Grain size can also be influenced by factors such as processing and variety.
What is the grain size of fine sand?
The grain size of fine sand typically ranges from 0.075 to 0.425 millimeters in diameter.
Grain size for bituminous coal?
The grain size of bituminous coal typically ranges from 0.5 to 2 inches. It is considered a medium-grain size coal, with a balance of fine and coarse particles. The grain size can vary depending on the specific source and processing of the coal.
What is the grain size of coal?
The grain size of coal can vary, but it typically ranges from fine particles to larger chunks. Coal can be classified based on its grain size as fine, medium, or coarse coal. The grain size of coal can impact its combustion efficiency and handling characteristics.
