Topaz is a mineral of magmatic origin that can be found in pegmatites, granites, rhyolite cavities and quartz veins. The crystals are large (80 x 60 x 60 cm approx.) And are found in various deposits in the Czech Republic, Brazil, Saxony, Norway, Sweden, Japan, etc. 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".