What makes this collection significant is the volume which is hitting the market at once, a rarity for Blue John pieces.

Screen Shot 2016-07-01 at 10.22.39 Chalice, 19th century

Screen Shot 2016-07-01 at 10.21.44 Engraved bronze and golden frame decorated with a frieze, late 18th or early 19th century

The mining of fluorspar first began in 1760 in Derbyshire, near Castleton. Extraction and stone carving took place in Derbyshire, before the objects were exported to France to be mounted in bronze.

Vase incense burner In the style of Matthew Boulton (1728-1809) Vase incense burner In the style of Matthew Boulton (1728-1809)

The material is a semi-precious mineral and is found only in Derbyshire's Blue John Cavern and Treak Cliff Cavern at Castleton. In 1768, industrialist Matthew Boulton wrote a letter in an attempt to purchase the mines to create ormolus.

Pot with cover, early 19th century Pot with cover, early 19th century

By the 19th century, Blue John was being used for a variety of objects, including dining sets and candelabras. Today, production continues in Castleton, where jewellery is mainly manufactured.

Vase, 19th centry Vase, 19th centry

The mines of Derbyshire are an integral part of the landscape, Sir Arthur Conan Doyle's The Terror of Blue John Gap, 1910, is set within the Blue John mining caves.

All items featured will be included in Muizon-Rieunier's sale on 4th July, 2016. Check out the full catalogue here.