Moonstone

The moonstone is a variety of adularia, belonging to the group of feldspars, whose best specimens come from Ceylon, but also present in the crystalline slates of the Alps and Vesuvius. Moonstone has many applications in jewelry.

The same name also refers to various varieties of feldspar minerals, the most used in jewelry is oligoclase—with a chemical composition almost the same as albite—which, polished into a cabochon, is used as a precious gem. Physically it has an iridescent touch and is white.

Moonstone is a stone widely used in jewelry because it is expensive and difficult to find.

Moonstone or adularia can be confused with white Labradorite, since it is white with bluish shine, leading to the marketing of the latter (labradorites) under the title of moonstones. The first photo we see would be an example of white labradorite.

The marketing of Opaline (translucent synthetic stone) under the name of this rock is also very common.