Texture.
The word that describes the shapes and sizes of grains in a rock is "texture." Texture refers to the arrangement and size of mineral grains in a rock, whether they are fine-grained, coarse-grained, or other specific characteristics.
The sizes,shapes,and positions of the grains that make up a rock.
Texture
The sizes, shapes, and positions of the grains in a rock determine its texture. Texture influences properties such as hardness, strength, and permeability in rocks. It also provides clues about the rock's history and how it formed.
Composition is the chemical makeup of a rock and describes either the minerals or other materials in the rock, and, texture is the quality of a rock that is based on the sizes shapes and positions of the rocks grains.
BASCILY texture is feel of something an Composition is what does it take to make up something.Texture is based on the sizes, shapes and position of the rocks grains. The Composition of a rock is determined by the minerals that make up the rock. Composition and texture are two characteristics that scientists use to classify rocks.
When all grains in a rock are large and easy to see, the rock is described as coarse-grained.
You can see rock grains on a rock by examining its surface closely. Grains may appear as small, distinct particles of various colors and sizes. The use of a hand lens or magnifying glass can help to enhance the visibility of individual grains.
Sedimentary rock could be of any of a great variety of shapes and sizes. Rock is not classified by physical shape.
The size shape and pattern of the rocks grains
rocks deform due to stress that bends the rock into different shapes and sizes.
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.