Versuch über die Kennzeichen der Edelsteine und deren vortheilhaftesten Schnitt. Joseph A. F. FLADUNG.
Versuch über die Kennzeichen der Edelsteine und deren vortheilhaftesten Schnitt.
“VERY RARE” — SINKANKAS

Versuch über die Kennzeichen der Edelsteine und deren vortheilhaftesten Schnitt.

[Vienna], [A. Strauß] for Konrad Adolf Hartleben in Pest 1819.

12mo. [iix], IV, [vi], 134p., two folding tables paginated 135-6 and 137-38, [2]p. and a folding lithographic plate.

Late 19th-century green cloth-backed and tipped marbled boards, gilt-lettered green calf title label.

Only Edition, based on “perhaps the best private mineral collection in all of Austria and Germany”, that of J.F. van der Nüll (1751-1829) (Wilson, The History of Mineral Collecting 103). Here eighty-three of his specimens are described and illustrated. It also contains an essay on the properties of gemstones and the method for determining specific gravity. Of particular note, the final section treats lapidary technology and emphasizes the relative proportions of faceted gems: “THIS IS ONE OF THE EARLIEST PLACES IN THE LITERATURE WHERE CORRECT PROPORTIONS ARE RECOGNIZED AS BEING VITAL TO DEVELOPMENT OF BRILLIANCE” (Sinkankas). Two copies in the U.S. In nice condition, stamps of Berlin gem expert, goldsmith and jeweler A.J.W. Houdelet (1874-1936), who took over the business of J. Köhler in 1903.
¶Sinkankas, Gemology: An Annotated Bibliography 2143; Schuh, Annotated Bio-Bibliography of Mineralogy and Crystallography (online) “Rare”.

Item #10995

Price: $2,800.00