A captivating 23.8g Blue John specimen from the renowned Treak Cliff Cavern in Derbyshire, England. This natural stone displays the signature bands of deep purple, violet, and creamy hues that make Blue John so distinctive and highly sought after. Ideal for collectors, lapidary projects, or as a unique display piece, it beautifully showcases the rarity and natural charm of one of the UK’s most treasured minerals.