Noun
A form of silica, or silicon dioxide (SiO2), occurring in hexagonal crystals, which are commonly colorless and transparent, but sometimes also yellow, brown, purple, green, and of other colors; also in cryptocrystalline massive forms varying in color and degree of transparency, being sometimes opaque.
Source: Webster's dictionaryAccording to a 2018 Quartz India survey, over 30 million active users play PUBG on a daily basis. Source: Internet
Amethyst Amethyst crystals on matrix Amethyst is a popular form of quartz that ranges from a bright to dark or dull purple color. Source: Internet
Although here Scott corrects Emma that, due to refraction, “the light turns yellow in the ruby quartz shield.” Source: Internet
After the war, many laboratories attempted to grow large quartz crystals. Source: Internet
Among minerals, flint and quartz were used the most for making cutting tools. Source: Internet
Among the well-known types of quartz are rose quartz (which has a delicate pink colour), and smoky quartz (which comes in a variety of shades of translucent brown). Source: Internet