Credit: © The Royal Society
                             
                         
                     
                         
                         
                             
                                 Image number: RS.10548
                             
                         
                         
                     
                 
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            ‘Calx fluor’
                                Date
                            
                            
                                1804
                            
                            
                        
                            
                            
                            
                                Creator
                            
                            
                                James Sowerby (1757 - 1822, British) , Naturalist
                            
                            
                        
                            
                            
                            
                                Object type
                            
                            
                            
                        
                            
                            
                            
                                Library reference
                            
                            
                                R64216
                            
                            
                        
                            
                            
                            
                                Material
                            
                            
                            
                        
                            
                            
                            
                                Technique
                            
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (print): 233mm
width (print): 145mm
                            
                        
                            
                            
                            width (print): 145mm
                                Subject
                            
                            
                            
                        
                            
                            
                            
                                Content object
                            
                            
                            
                        
                            
                            
                            
                                Description
                            
                            
                                Two 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 Philip Rashleigh, Esq., F.R.S., &c., of Menabilly in Cornwall...the next specimen in value I have the pleasure to possess myself...”
The plate is inscribed: “May. 1 1804. Published by Jas. Sowerby, London.”
                            
                            
                        
                            
                            
                            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 Philip Rashleigh, Esq., F.R.S., &c., of Menabilly in Cornwall...the next specimen in value I have the pleasure to possess myself...”
The plate is inscribed: “May. 1 1804. Published by Jas. Sowerby, London.”
                                Associated place