When grains are crystallized they form crystals. We refer crystals as grains because they are basically CRYSTALLIZED grains but they are different in a way because during the formation of crystals the process of crystallization occurs which involves a chemical change and remember chemical change gives a substance new properties so crystals have new properties however its very much like a grain sharing similar properties and the origin of a crystal is a grain. For example a steak is made from chicken though it physically looks different but it is still made from chicken! but has little different properties so we call steak chicken but has different properties even then you wont separate steak from the chicken's category. so you cant separate crystals from grain's category.When you will say grains you will mean simply that minerals joined to make bits called grains and when you say crystals you will mean crystallized grains!
The main difference between a tetragonal crystal and a cubic crystal lies in their unit cell structure. In a tetragonal crystal, the unit cell has one axis longer or shorter than the other two perpendicular axes, resulting in a rectangular prism shape. In a cubic crystal, all three axes are of equal length, forming a cube-shaped unit cell.
There is no difference between "real crystal" and "nand crystal." It seems like there may have been a typo or misunderstanding in the question. Crystals are naturally occurring solids with a regular repeating pattern, while "nand" does not have a recognized meaning in this context.
X-ray diffraction is the primary tool used to determine the crystal structure of a salt grain. It can provide detailed information about the arrangement of atoms within the crystal lattice of the salt.
A single piece of salt is called a grain or a crystal.
Crystal Radii is also known as "Metallic Radii ". It is defined as "half the distance between the nuclei of two adjacent metal atoms in the metallic closed packed crystal lattice". It is used for metal atoms which are assumed to be closely packed spheres in the metallic crystal. As for ionic radii .... I don't know.
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
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.
look in textbook
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.
The main difference between a tetragonal crystal and a cubic crystal lies in their unit cell structure. In a tetragonal crystal, the unit cell has one axis longer or shorter than the other two perpendicular axes, resulting in a rectangular prism shape. In a cubic crystal, all three axes are of equal length, forming a cube-shaped unit cell.
Large crystals with a coarse crystal grain texture.
the size of the grain
"http://wiki.answers.com/Q/What_is_the_Difference_between_a_seed_and_a_grain"