Quartz is more valuable when it is completely intact; however, a piece of naturally occurring quartz of unusual color is still worth more and of higher quality than a smooth piece of manufactured plastic or glass designed to imitate quartz.
Quarts of what? If you mean the mineral quartz, it's quite common and very cheap (almost literally dirt-cheap). Large "pretty" crystals may be a bit pricier, but most sand is, basically, very small pieces of quartz.
Quartz is the homophone for quarts.
physical change
You can eat some kinds of crystals... salt crystals and sugar crystals, for example. It's probably not a good idea to eat, say, quartz crystals, though.
As the name implies, a "crystalline structure" is going to be found in "crystals", hence: quartz.
Quarts is a molecular derivative of quartsize sedimentary rock. It is prized for its slightly smaller and more brilliant crystals as compared to its European equivalent, literstone.
Quartz can appear in transparent hexagonal crystals.
Hand specimens of microcrystalline quartz are typically aggregates of crystals rather than single crystals. Microcrystalline quartz is composed of small interlocking crystals that are too small to be individually distinguished without magnification.
Sand is made of quartz crystals and it is easy to find them (in larger size) in rocks. So you could get one for free.
The material used to manufacture piezoelectric crystals is quartz. Wrist-watch crystals are often made of quartz. Quartz is a transparent mineral. The statement "There are four quartz in an imperial gallon" is faulty, and logically meaningless.
Quartz is a type of crystal. There are many different types of crystals. A crystal is any solid with a regular repeating atomic/molecular structure. Quartz is a crystal that is composed of silicon dioxide. Diamond is a crystal of carbon. Rubies and sapphires are crystals of aluminum oxide. Salt is a crystal of sodium chloride. Even organic compounds, like sugar, can form crystals. Semi-crystalline material is also known, and an example of that is the common plastic HDPE (high density polyethylene).
Yes! Of course! Because they are both crystals.