There are many kinds of quartz crystal configurations or formations which possess specific properties unique to that configuration. While the general properties of quartz are still there, having a special configuration imbues them with some qualities of its own.
The double terminated quartz crystal is one such special formation; another is the laser wand crystal; but [...]

Now remember the old elemental chart you used to refer to for chemistry lessons at school? Known as the Periodic table, this chart was first devised by a Russian chemist named Dmitri Mendeleev in 1869 as a means of showing the recurring changes in the properties of the elements. Minerals are formed from one [...]