Mineralogy
1 Sib. Beryl. 2 Emerald. 3 Rubellite. 4 Brazil Topax. 5 Ruby. 6 Star Sapphire. 7 Opal. 8 Hyacinth.
A popular treatise of gems
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Title page of A Method of Making Useful Mineral Collections
An Essay Towards a System of Mineralogy
Cronstedt, a Swedish mineralogist, developed a new classification of minerals based on their chemical properties rather than their appearance, using the blowpipe for his chemical analyses. James Smithson, a gentleman-scientist and the Institution's founder, owned and annotated this copy of the English translation and became renowned for his expertise in the same analytical technique.