page_title: James Tennant (mineralogist)
hierarchical_section_title: James Tennant (mineralogist)
context_page_description: James Tennant was an English mineralogist, the master of the Worshipful Company of Turners and mineralogist to Queen Victoria.
context_section_description: James Tennant (8 February 1808 – 23 February 1881) was an English mineralogist, the master of the  Worshipful Company of Turners and mineralogist to Queen Victoria.
caption: Diamond copy of the famous Koh-i-Noor in its current cut, which was supervised by Tennant
exif: {}