Columbia subject headings:
Gemology--Early works to 1800.
Gems--Early works to 1800.
Manuscripts, Arabic--Translations into German.
Minerals--Early works to 1800.
Precious stones--Early works to 1800.
Harvard subject headings:
Gemology--Early works to 1800.
Gems--Early works to 1800.
Manuscripts, Arabic--Translations into German.
Minerals--Early works to 1800.
Precious stones--Early works to 1800
Princeton subject headings: