Larvikite is a monzonitic Feldspar rock from the Feldspar family. It contains Nepheline Syenite, Plagioclase, Perthite, Anorthoclase, Anorthite, Ortholclase, and Albite.
This stone is usually dark grey, dark blue, or black in color. It also usually has Nepheline or Quartz inclusions. Its name is derived from the place where this igneous rock was found. It originated from the Larvik Region of Norway.
Larvikite is also sometimes called Black Moonstone, even if it’s not actually a moonstone. It’s also called Birds Eye Granite, Pearlspar, Blue Pearl, Emerald Pearl, Norwegian Pearl Granite, or Blue Norwegian Moonstone.