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I made some purple parchment! #teachingmanuscripts #medievalmanuscripts #medievalstuffwithcats @IES_London @LondonRareBooks 
Tyrian (or imperial) purple was by far the most superior colour in the ancient and medieval world, but is very expensive. Mohammed Ghassen Nouira makes Tyrian purple using traditional Phoenician methods, with fantastic results. I hope to work with him soon facebook.com/Pourpre-de-Car…
Orchil purple, obtained from lichens, was a cheaper alternative, and probably used in the Book of Kells. However, it is hard to source and ecologically unwise to do so. Isabella Whitworth has done a lot of work on dyeing textiles with orchil isabellawhitworth.com/2013/09/17/tal…
