Elvan (Q43566): Difference between revisions
From geokb
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Revision as of 19:56, 5 July 2023
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
Language | Label | Description | Also known as |
---|---|---|---|
English | Elvan |
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 |