Origin: Derbyshire, UK
Mineral Species: Fluorite
Mineral Group: Halides
Chemical Formula: CaF2
Crystal System: Cubic (Isometric)
Colour: Purple with clear and white banding
Typical Appearance: Blue John is massive fluorite, showing distinct banding of purple with cream or white, and occasionally green. Purple with cream is the most common colour combination.
Chakra Alignment: Throat and Third Eye
Origin of Name & Mythology: Blue John may be a corruption of the French bleu jaune, meaning "blue yellow". The mines were worked from the early Roman period, when the stone was carved to make drinking vessels, and prized for the flavour it gave wine, which was in fact created by the pine resin used to stabilise the stone while carving. The mines fell into disuse, but were rediscovered in the 18th century.
Blue John shares the properties of rainbow fluorite and violet fluorite. It is more of an earthbound workhorse than violet fluorite, meant in a good way.
It works its way through the physical body, cleansing, balancing and relaxing as it goes.