A particle is a single free standing entity of powder. A grain is an entity of material as bordered by grain boundaries, in other words a single crystal. Particles can be composed of several grains agglomerated toghether
Grain refers to particle or crystal size in rock.
Coarse is ruff/hard, and fine grain is smooth/ soft!
Fine crystal grain.
A single crystal solid is a material in which the crystal lattice of the entire sample is continuous and unbroken to the edges of the sample, with no grain boundaries. While Polycrystalline materials are solids that are composed of many crystallites of different size and orientation.
There is no differrence .
Coarse is ruff/hard, and fine grain is smooth/ soft!
they are the same they are just used in different kind of sentences.
Large crystals with a coarse crystal grain texture.
the size of the grain
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A grain
Grain