Ruines de l'Alun de pointe fonctionne, Ravenscar, près de Robin Hood's Bay, Yorkshire, Angleterre, Royaume-Uni. Sur le chemin du littoral de Cleveland Way.

• Contributeur: Vincent Lowe / Alamy Banque D'Images
• ID de l’image: F2GG7P
• Taille du fichier: 34,9 MB (3,4 MB Téléchargement compressé)
• Autorisations: Modèle - non | Propriété - non
• Dimensions: 4288 x 2848 px | 36,3 x 24,1 cm | 14,3 x 9,5 inches | 300dpi
• Date de la prise de vue: 10 juillet 2015
• Lieu: Peak Alum works, Ravenscar, near Robin Hood's Bay, Yorkshire, England, UK

Informations supplémentaires

This site was once home to one of Britain’s earliest chemical industries from 1650 to 1862. A chemical called alum, essential to ‘fix’ and brighten dyes in textiles, was made here from locally-mined shale from the nearby cliffs. The works here were virtually unique in producing alum in Britain and the process was a closely-guarded secret. Producing alum was a long process that could take up to a year. Shale was piled into huge bonfires that smouldered for nine months before being steeped in water to produce alum liquor. At the works this was repeatedly heated and cooled to make the crystals used in the textiles industry.

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