Fluorite

A beautiful interpenetrant blue and yellow zoned Fluorite twin from Jakub’s Pocket, discovered during mid-summer in 2021 at the Lady Annabella mine near to Eastgate in Weardale, County Durham, England.  Discovered by Jakub Sauermann during specimen recovery operations, this was a small pocket, about the size of a soccer ball, measuring about 22 cm in diameter (8.7 inches).  This was therefore a very small pocket and hence only a very limited number of specimen were produced.  Statements such as this are misconstrued as hype by some, but it is a fact.  Although broken-off at across the base, this miniature displays a prominent elongated cubic crystal, measuring 3.4 x 2.5 x 2.4 cm.  The crystals are reasonably, but not perfectly, gemmy throughout but don’t let this comment distract as both prisms are totally transparent and wonderfully zoned.  The zoning is too complex to describe here but appear most intense towards the apex of the prisms where the outer zones are pale sky blue.  The core of each crystal is lemon to golden honey yellow, depending on the direction of light entering it.  Under LWUV the outer edges fluoresce bright blueish white while the prism faces are lavender purple.  There is no doubt the Fluorite from Jakub’s Pocket is stunning and destined to become a Lady Annabella classic.