Luxullianite
Rare type of granite
Luxullianite (also known as luxulyanite or luxulianite) is a rare type of porphyritic 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.
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 Duke of Wellington's tomb in St Paul's Cathedral in London.[1]
References
- ^ Lobley, J. Logan (1892). "Building stones, their structure and origin". Stone: an Illustrated Magazine. V (June–November): 46. Retrieved 1 January 2023.
External links
- Microscopic images of luxullianite. Siddall, R. (2014), Minerals Menu: a catalogue of minerals & textures in thin section.
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Types of rocks
- Adakite
- Andesite
- Alkali feldspar granite
- Anorthosite
- Aplite
- Basalt
- Basaltic trachyandesite
- Basanite
- Blairmorite
- Boninite
- Carbonatite
- Charnockite
- Dacite
- Diabase
- Diorite
- Dunite
- Essexite
- Foidolite
- Gabbro
- Granite
- Granodiorite
- Granophyre
- Harzburgite
- Hornblendite
- Hyaloclastite
- Icelandite
- Ignimbrite
- Ijolite
- Kimberlite
- Komatiite
- Lamproite
- Lamprophyre
- Latite
- Lherzolite
- Monzogranite
- Monzonite
- Nepheline syenite
- Nephelinite
- Norite
- Obsidian
- Pegmatite
- Peridotite
- Phonolite
- Phonotephrite
- Picrite
- Porphyry
- Pumice
- Pyroxenite
- Quartz diorite
- Quartz monzonite
- Quartzolite
- Rhyodacite
- Rhyolite
- Scoria
- Shonkinite
- Sovite
- Syenite
- Tachylyte
- Tephriphonolite
- Tephrite
- Tonalite
- Trachyandesite
- Trachybasalt
- Trachyte
- Troctolite
- Trondhjemite
- Tuff
- Websterite
- Wehrlite
- Argillite
- Arkose
- Banded iron formation
- Breccia
- Calcarenite
- Chalk
- Chert
- Claystone
- Coal
- Conglomerate
- Coquina
- Diamictite
- Diatomite
- Dolomite
- Evaporite
- Flint
- Geyserite
- Greywacke
- Gritstone
- Itacolumite
- Jaspillite
- Laterite
- Lignite
- Limestone
- Lumachelle
- Marl
- Mudstone
- Oil shale
- Oolite
- Phosphorite
- Sandstone
- Shale
- Siltstone
- Sylvinite
- Tillite
- Travertine
- Tufa
- Turbidite
- Varve
- Wackestone
- Adamellite
- Appinite
- Aphanite
- Borolanite
- Blue Granite
- Epidosite
- Felsite
- Flint
- Ganister
- Gossan
- Hyaloclastite
- Ijolite
- Jadeitite
- Jasperoid
- Kenyte
- Lapis lazuli
- Larvikite
- Litchfieldite
- Llanite
- Luxullianite
- Mangerite
- Novaculite
- Pietersite
- Pyrolite
- Rapakivi granite
- Rhomb porphyry
- Rodingite
- Shonkinite
- Taconite
- Tachylite
- Teschenite
- Theralite
- Unakite
- Variolite
- Wad
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