Quartz can be found in almost any deposit in the earth's crust. It is a mineral composed of silica to which society in general and astrology in particular have conferred great value. Representative of zodiacal signs such as Capricorn or Virgo, it has multiple variants of different colors. The most sought-after variant is quartz called rock crystal, since it is transparent and without defects in coloring. It can be found in Minas Gerais (Brazil). You have all the information in: «List of the most precious rocks and minerals on the planet«.
You have all the information in: "List of the most precious rocks and minerals on the planet".