The structure of diamonds
                                Date
                            
                            
                                20 November 1722
                            
                            
                        
                            
                            
                            
                                Object type
                            
                            
                            
                        
                            
                            
                            
                                Archive reference number
                            
                            
                            
                        
                            
                            
                            
                                Manuscript page number
                            
                            
                                p284
                            
                            
                        
                            
                            
                            
                                Material
                            
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (page): 322mm
width (page): 200mm
                            
                        
                            
                            
                            width (page): 200mm
                                Subject
                            
                            
                            
                        
                            
                            
                            
                                Description
                            
                            
                                From a letter by Antoni van Leeuwenhoek to James Jurin, the Secretary of the Royal Society. 
Fig. 1: a crumb of a diamond observed with a microscope, which shows the layers.
Fig. 2: more clearly one can see here how the layers in the diamond are all on top of each other.
Fig. 3: another side of the diamond showing lines that are not layers.
Fig. 4: the size of the piece of diamond observed for figs 1-3.
Fig. 5: a bit of rock crystal with six sides.
Fig. 6: the same piece as in Fig. 5 but more enlarged showing the surface before polishing.
Fig. 7: not referred to in the text.
Fig. 8: a small part from the piece in Fig. 5, showing the perfectly smooth surface.
Fig. 9: the size of the crumb in figure 8.
Leeuwenhoek had these nine images drawn for him by an unknown artist. These drawings were engraved by John Sturt for Philosophical Transactions of the Royal Society of London, vol. 32, no. 374 (1723). A print of the engraved images can be found at EL/L4/83/013, now with the original letter.
                            
                            
                        
                            
                            
                            Fig. 1: a crumb of a diamond observed with a microscope, which shows the layers.
Fig. 2: more clearly one can see here how the layers in the diamond are all on top of each other.
Fig. 3: another side of the diamond showing lines that are not layers.
Fig. 4: the size of the piece of diamond observed for figs 1-3.
Fig. 5: a bit of rock crystal with six sides.
Fig. 6: the same piece as in Fig. 5 but more enlarged showing the surface before polishing.
Fig. 7: not referred to in the text.
Fig. 8: a small part from the piece in Fig. 5, showing the perfectly smooth surface.
Fig. 9: the size of the crumb in figure 8.
Leeuwenhoek had these nine images drawn for him by an unknown artist. These drawings were engraved by John Sturt for Philosophical Transactions of the Royal Society of London, vol. 32, no. 374 (1723). A print of the engraved images can be found at EL/L4/83/013, now with the original letter.
                                Object history
                            
                            
                                Figures printed in Antoni Leeuwenhoek, 'De particulis et structura adamantum', Phil. Trans. vol. 32, no. 374, pp. 199-206.
                            
                            
                        
                            
                            
                            
                                Related fellows
                            
                            
                                Antoni van Leeuwenhoek (1632 - 1723, Dutch) , Naturalist
                            
                            
                        
                            
                            
                            
                                Associated place