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Luxullianite from Cornwall, showing dark patches of tourmaline and pink crystals of orthoclase
Thin section of luxullianite from Cornwall, showing clusters of radially-arranged, acicular, greenish tourmaline crystals

Luxullianite (also Luxulyanite, Luxulianite) is a rare type of granite, notable for the presence of clusters of radially arranged acicular tourmaline crystals enclosed by phenocrysts of orthoclase and quartz in a matrix of quartz, tourmaline, alkali feldspar, brown mica, and cassiterite.

Luxullianite Granite is an eye-catching natural stone that is formed underneath the earth’s shell in million years ago. It is produced from magma. There are different forms of granite usually adorned with a numerous of color variations.

The name originates from the village of Luxulyan in Cornwall, England, where this type of granite is found. An example may be seen in the Duke of Wellington's monument at St Paul's Cathedral in London.

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