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Luxullianite (also known as luxulyanite or luxulianite) is a rare type of porphyritic granite, notable for the presence of clusters of radially-arranged Acicular (crystal habit), acicular tourmaline crystals enclosed by phenocrysts of orthoclase and quartz in a matrix (geology), matrix of quartz, tourmaline, alkali feldspar, brown mica, and cassiterite.
The name originates from the village of Luxulyan in Cornwall, United Kingdom, where this type of granite is found. An example may be seen in the Arthur Wellesley, 1st Duke of Wellington, Duke of Wellington's tomb in St Paul's Cathedral in London.
Microscopic images of luxullianite. Siddall, R. (2014), Minerals Menu: a catalogue of minerals & textures in thin section
Granitic rocks Geology of Cornwall {{Petrology-stub
Luxullianite (also known as luxulyanite or luxulianite) is a rare type of porphyritic granite, notable for the presence of clusters of radially-arranged Acicular (crystal habit), acicular tourmaline crystals enclosed by phenocrysts of orthoclase and quartz in a matrix (geology), matrix of quartz, tourmaline, alkali feldspar, brown mica, and cassiterite.
The name originates from the village of Luxulyan in Cornwall, United Kingdom, where this type of granite is found. An example may be seen in the Arthur Wellesley, 1st Duke of Wellington, Duke of Wellington's tomb in St Paul's Cathedral in London.
References
External links
Microscopic images of luxullianite. Siddall, R. (2014), Minerals Menu: a catalogue of minerals & textures in thin section
Granitic rocks Geology of Cornwall {{Petrology-stub