If leucite is exposed to the air and other elements, it can pseudomorph (change chemistry without changing shape) into pseudoleucite, a combination of orthoclase feldspar and nepheline. More exposure can transform it further to the clay kaolinite, like these specimens from Brazil shown here. Photo by Eurico Zimbres. Licensed under CC By-SA 2.0.
Opaque White Leucite Rough from Brazil
If exposed to the air and other elements, leucite can pseudomorph (change chemistry without changing shape) into pseudoleucite, a combination of orthoclase feldspar and nepheline. Further exposure can transform it into the clay mineral kaolinite, like these specimens from Brazil. Photo by Eurico Zimbres. Licensed under CC By-SA 2.5.
Article: Leucite Value, Price, and Jewelry Information
Credit: Eurico Zimbres
| Gemstone | Leucite |
| Natural or man made | Natural |
| Origin | Brazil |
| Gem State | Rough |
| Color | White |
| Transparency | Opaque |