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Elvan

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A Cornish mining term for dyke rocks of granitic composition containing phenocrysts of quartz and orthoclase with tourmaline occurring as isolated crystals and radiating groups.


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Classification of ElvanHide

Granite is in section 3 of the QAPF diagram.

Mineralogy of ElvanHide

Essential minerals - these are minerals that are required within the classification of this rock:
Feldspar > Alkali Feldspar > OrthoclaseK(AlSi3O8)
Feldspar > PlagioclaseA petrological term for Albite-Anorthite Series.
Silica > QuartzSiO2
TourmalineA(D3)G6(Si6O18)(BO3)3X3Z

Pronounciation of ElvanHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Synonyms of ElvanHide

References for ElvanHide

Reference List:
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Le Maitre (ed.) (2002) Igneous Rocks - A Classification and Glossary of Terms. Cambridge Press
Henwood, W.J. (1843): Transactions of the Royal Geological Society of Cornwall 5, 1-386

Internet Links for ElvanHide

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