Who owns Delabole quarry?
Who owns Delabole quarry? In the 1830's the quarry was owned by the Bake family of Tynes in the parish of St. Teath. Now, after buying out the minority shareholder, the Hamilton family have 100% ownership, and Delabole Slate has made the historic return to being a Cornish and family owned business.
How old is Cornish slate?
Cornish slates have been quarried for roofing material for at least 600 years, although they are not as well-known as the roofing slates of North Wales. They were originally deposited as muds on the sea-floor around 400 million years ago.