Rare Raw Blue John Fluorite Cluster Specimen from Derbyshire, England – 106 grams – #03

Raw Natural Blue John Cluster Specimen

Country of Origin: Miller Vain, Treakcliff Cavern, Castleton, United Kingdom

10-point scale of mineral hardness: 4 (10 – Hard, 1 soft)

Quantity: 1 Blue John Specimen. You will receive the exact gemstone shown in the photos.

Size: approx 4cm in height x 5.3cm in width x 5.2.cm in depth

Weight: 106 grams

Care has been taken to ensure that weights and measurements are as accurate as possible, however please do note that these are only approximate.

These specimens are in their natural raw form and shedding of small crystals is normal. Natural inclusions, cracks and pockets are all visible and all part of the natural stone. Please handle with extra care. These are very fragile stones.

Blue John is a rare form of Fluorite only found in Castleton, UK. This stone is becoming very rare and hard to source making it a collector’s piece. It is also known as the ‘Derbyshire Spar’ and is known for its bands of colour different colours of purple-blue and creamy yellow. The name ‘Blue John’ is derived from the French bleu-jaune which indicates blue and yellow.