Name: Blue John Fluorite.
Location: Castleton Derbyshire UK.
Size: 230 x 160 x 100 mm.
Weight: 5 Kg.
Comment: A rare specimen from the 1980’s . A Blue John Fluorite of this size is unheard of these days. For the large species collector this specimen is out of the ordinary from the run of the mill Fluorites that one normally sees in their travels.The face of the specimen shows the parallel growth of octahedral crystals which had occured over eons of time.