Calx fluor Christmas tree Charles James Fox and Cecil

Charles James Fox and Cecil Wray

Found in the collection of the Musée de l'Histoire de France

with figure and scale inscriptions positioned accordingly

On 17th July 1964 he set a speed record on land with a jet-powered Class A land vehicle

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Calx fluor Christmas tree Charles James Fox and CecilTwo specimens of fluorite, here termed 'fluate of lime, or fluor', with a figure showing its crystalline form. Plate 73 from British mineralogy: or coloured figures intended to elucidate the mineralogy of Great Britain, by James Sowerby, volume 1 (London, R. Taylor & Co., 1804). The accompanying text states that 'These specimens are among the rarest of the fluors known in Great Britain. The upper one is in the possession of my very generous friend