Blue John specimen
A compact banded variety of Fluorite known as Blue John, found only in Castleton, Derbyshire, England. This specimen is held at the Natural History Museum, London
Picture No
10711384
Media ID
47573320
Size
4620px x 3782px
(10.1MB)
Credit
Mary Evans / Natural History Museum
Source
Photograph from the Natural History Museum Collection
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Banded Castleton Crystalline Derbyshire Fluorite Fluorspar Halide Layer Mineral
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