You are here: Home › Uncategorized › Rock 365 : Day 274 : Elvan Dyke ← Rock 365 : Day 273 : Garnetiferous Rhyolite Rock 365 : Day 275 : Rhyolite → Rock 365 : Day 274 : Elvan Dyke Day 274 : Elvan is a Cornish term for quartz porphyry. This is from the Isles of Scilly. Keele collection. Leave a Reply Cancel reply Your email address will not be published. Required fields are marked * Name * Email * Website Comment You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>
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