There have always been many types of quartz, but it was not until the 18th century Swedish chemist Torbern Bergman managed to show successfully that all of them shared common chemical characteristics that justified placed them in same category. Quartz was and still is probably the most common mineral found on earth. Quartz can both look different in color and have a slightly different texture. Quartz, for example, can be white or without color, it can be blue, red, green, yellow, orange, brown, pink, purple, or even gray, or black; in fact some types of quarks can also have more than one colors; additionally, the level of transparency can also be varied.
Originally the several types of quartz were classified under three general categories on whether they could be seen under a microscope or not. Macrocrystalline quartz included varieties that are made of large ingrown crystals, which could easily be seen with a naked eye. Microcrystalline quartz, on the other hand, consisted of tiny crystals that could not be visible without the use of an optical microscope. As for those varieties that not even a microscope was enough to resolve their structure, they fell under the category of cryptocrystalline quartz.
Nowadays, the classification process is much more elaborate and that’s there is an enormous amount quartz that are recognized. The most common types of quartz, however, are: amethyst, ametrine, aqua aura quartz, citrine crystals, fire quartz, green quartz. Amethyst is by far the most famous among all types of quartz. Amethyst is supposed to have beneficial properties for the human body: it can boost up your immune support; it can promote proper endocrine function; it can also enhance brain activity during night time (that is why it is used to help people suffering from mental disorders); and most importantly amethyst can act an energizer and an effective blood cleanser. Citrine crystals are also a kind of amethyst that has turned yellow due to exposure to high temperatures (as 800 or 1000 Celsius degrees) and they are usually found in North and South America, especially Brazil and Argentina, as well Scotland, Spain, and Russia. Some types of quartz, however, occur when two types of quartz are naturally mixed together. One such example is ametrine, which is basically a mixture of ametrine and citrines. One of the most beautiful types of quartz is the aqua aura quartz. Known for its delicate vibrant blue color, the aqua aura is believed to have stress and anger relieving properties. Bridge crystal can attract someone’s attention due to the fact that it looks like small transparent crystals are stuck into a larger transparent crystal. Fire quartz, also known as Harlequin Quartz is a rather weird looking transparent crystal with red dots spread all over it that is known a rich energy source; while the alluring green quartz is supposed to be the number one healing stone.
Other types of quartz include but are not limited to: the bushman quartz, the bridge crystal, the cactus quartz (also known as spirit quartz), the hematoid quartz, as well as laser quartz, lithium crystal, tantric twin, and window crystals.