Usually, the ideal of human control environment, that is, physical, chemical
conditions are those conditions are not met circumstances, the crystal growth
rate of about daily 0.8 millimeters (mm). This is man-made crystal many
laboratories, factories standard production rate. This nurtured by the crystal,
is the so-called "artificial crystal" (synthetic quartz), usually more cut into
chips (chips) available for electronics, computers, telecommunications industrial
uses; It was also known as the "nourishing grain" (cultivated quartz, cultured
quatrtz), although different terminology is used, in fact talking about the same
thing. Generally, the industrial uses of artificial crystal, about the thickness
of about 3 cm, or 30 mm, need about 40 days time to grow up; for a jewelery
industry to grind to 10 cm (100 mm) above a crystal ball, it normally takes about
120 ~ 180 days are enough. However, all of which are under the control of the
best in the artificial environment, will it be possible to have such speed, in
nature, the situation is less optimistic, because raw materials, water quality,
temperature, pressure and so on the conditions have been changing, it is very
difficult to achieve in ideal conditions, usually require tens of thousands of
times, millions of times, or the time, to achieve the same growth. This is why
"geological age to" act as "millions of years" for the base figure, it was the
"natural crystal" (natural crystal) is valuable in it.
In normal crystal growth, and can be found cylindrical more sophisticated Leng
line runs parallel to the growth profile (growth lines). As in the underground
cavern where the growth in the more narrow space, especially in the face of an
earthquake, or changes in the crust, even vulnerable to the squeeze in other
ores, often oppressed produce different "crystal face." Also, when the liquid-
crystal or in the time, often also coated with other ores,with crystal growth,
rutile (later turned into a crystal), lahar Gray (later turned into a Mirage
crystal), and so on. All of these are "natural part of a" Please do not regarded
as a flawed