Indeed, not all crystals are perfect. Often a process called twinning occurs. On the walls of a cavity, there may be several nucleation centres, points of first formation of a crystal. As these crystals grow they will interfere in each other's space.
the mineral formed in a restricted space. compares a cyrstal that grew in an open space with one that grew in a restricted space.
it doesnt
temerature, weather and pressure
by wars and things like that
The atomic structure dictates how easily the atom can bond with another atom. It also dictates the charge that an atom has.
The most common effect is that more and smaller crystals form than would be formed with slow cooling of the same mass of the same crystalizable material, and the incidence of crystal defects is higher because the rapidity of crystal formation does not permit the correction of initially formed defects by interchange of atoms or other crystal forming units between the liquid and solid phases that can occur during slow crystallization.
no
the mineral formed in a restricted space. compares a cyrstal that grew in an open space with one that grew in a restricted space.
Ammonia will cause the salt crystal to grow bigger and it will also speed up the process of thhe salt crystal forming.
The type of crystal structure doesn't affect the transparency. For example a body centered cubic structure is no more and no less transparent than a hexagonal close packed structure. However if the block of substance is a mess of many crystal structures stuck together in no coherent order then yes it does affect the transparency.Transparency is more dependent on the chemical bonds and the particular light that they absorb. These bond energies are unaffected (ok maybe slightly affected) by the particular crystal structure they find themselves in.Crystal structure however does have a big influence on the index of refraction of light. You can have left refraction, right refration or even both at the same time depending on the crystal structure.
Minerals are by definition occurring in nature, solid, having a specific chemical formula, and having a crystalline structure. When minerals form from a gaseous or liquid state of matter into a solid, their combinations of atoms arrange themselves into a crystalline structure, for example, a quart crystal. These crystalline structures are divided into six or seven (depending on what article you read) crystal systems by length and relationships between the crystal axes.
No.
Metallurgic dislocations are defects or irregularities within the crystal structure of a metal. These dislocations can affect the physical properties of the metal, such as yield strength.
No... is that a joke...
Yes.
no
Stupid loads would affect a structure!
structure