(Born: Munich, Bavaria, Germany, 22 November 1816; Died: Heidelberg, Germany, 27 November 1878) German mineralogist, petrographer & stratigrapher.

Born the son of Karl Caesar von Leonhard, Gustav graduated from the University of Heidelberg. He taught at Heidelberg from 1853.

Biographical references: ADB: 18, 307. • American Journal of Science: 3rd Series, 117 (1879), 342. • Barr, Index to Biographical Fragments, 1973: 153. • DBA: I 755, 48; II 803, 378-379. • Lambrecht & Quenstedt, Catalogus, 1938: 259. • Neues Jahrbuch für Mineralogie, Geologie und Paläontologie: Jg. 1879, 224c-224d. • Poggendorff: 1, col. 1427 & 3, 796-7. • Sarjeant, Geologists, 1980: 3, 1553. • WBI. • World Who's Who in Science: 1026.

Handwörterbuch, 1843

1. German, 1843.
Handwörterbuch | der | topographischen Mineralogie. | Von | Gustav Leonhard, | [...4 lines of titles and memberships...] | [double rule] | Heidelberg. | Akademische Verlags-Handlung von J.C.B. Mohr. | 1843.

8°: [i]-xii, [1]-593, [3] p.

Contents: [i-ii], Half title page, verso blank.; [iii-iv], Title page, verso blank.; [v], Dedication.; [vi], Blank.; [vii]-xii, "Vorrede."-dated June 1843.; [1]-541, Text.; [542]-546, "Zusätze, Nachträge, und Berichtigungen."; [547]-593, "Inhalts-Übersicht | Nach | alphabetisch-geographischer Ordnung."; [1 pg], Blank.; [2 pgs], "Verbesserungen."

Very scarce. An early dictionary of topographical mineralogy, in which the text lists in alphabetical order the names of the species, with geographical distribution underneath. At the end, an index reverses this position, and lists localities, with the known species underneath. This was one of the first works to attempt a comprehensive worldwide analysis of mineral distribution.

Bibliographical references: Dana's 7th (Bibliography): 76. • NUC: 327, 215-6 [NL 0266654].

2. German, 1852 [First edition].
Die | Mineralien Badens | Nach | Ihrem Vorkommen | von | G. Leonhard, | [...7 lines of titles and memberships...] | [ornate rule] | Stuttgart. | E. Schweizerbart'sche Verlagshandlung Und Druckerei. | 1852.

8°: π² 1-3⁸ χ⁵; 32l.; [4], [1]-55, [5] p. Page size: 152 x 44 mm.

Contents: [2 pgs], Title page, verso blank.; [1 pg], "Vorwort."-signed G. Leonhard.; [1 pg], Blank.; [1]-45, Text.; [46]-55, Glossary.; [1 pg], Blank.; [4 pgs], Advertisements.

Very scarce. A popular topographical mineralogy describing the species found in the area of Baden in Lower Austria. There are famous warm mineral springs in the area that had been used since Roman times.

Beiträge, 1854: Beiträge zur mineralogischen und geognostischen Kenntniß des Grossherzogthums Baden. Stuttgart, Schweizerbart'sche Verlagshandlung, 1854. 3 parts. 8°: 121 p., 2 plates.; 112 p., 3 folding plates.; 136 p., 2 plates.

Rare. These are supplements published to expand the knowledge of the mineralogy and geology of the state of Baden in Austria.

Bibliographical references: NUC [no copy listed].

3. German, 1876 [3rd edition].
Die Mineralien Badens nach ihrem Vorkommen. 3te vermhrte Auflage. Stuttgart, Schweizerbart, 1876.

8°: 65 p. Scarce.

Bibliographical references: NUC: 327, 215-6 [NL 0266657]. • Spencer, Catalogue of Topographical Mineralogies, 1948 [p. 307].

4. German, 1851-2 [First edition].
Grundzüge der Mineralogie, Geognosie, Geologie und Bergbaukunde. Nach David T. Ansted, Dana, Murchison, Beudant u.a.m., Frei Bearbeitet mit besonderer Rücksicht auf Gewerbe, Künste und praktisches leben, von Dr. Gustav Leonhard. Stuttgart, J.B. Müller's Verlagshandlung, 1851-1852.

3 vols. 8°: [4], 176 p.; [4], 172 p.; [6], 138 p.

Rare. Contents: [1] Grudzüge der Mineralogie für Schule und Haus - [2] Grunzüge der Geognosie und Geologie für Schule und Haus - [3] Grundzüge der Bergbaukunde für Schule und Haus.Other Authors: Ansted, D. T. (David Thomas), 1814-1880. Dana, Edward Salisbury, 1849-1935.

Bibliographical references: NUC: 327, 215-6 [NL 0266653].

5. German, 1853 [2nd edition].
Grundzüge | Der | Mineralogie | für | Schule und Haus. | Von | Dr. Gustav Leonhard, | Privatdocenten an t. Univresität Heidelberg. | [rule] | Zweite revidirte Ausgabe | mit 42 Holzschnitten. | [ornament] | Stuttgart, | Verlag von J.B. Müller. | 1853.

8°. Very scarce.

Bibliographical references: NUC: 327, 215-6 [NL 0266653].

Grundzüge der Mineralogie, 1860

6. German, 1860 [2nd edition].
Grundzüge | Der | Mineralogie | Von | Dr. Gustav Leonhard, | Ausserordentlicher Professor In Heidelberg. | [rule] | Zweite, Neu Bearbeitete Auflage. | [rule] | Mit 24 in den Text gedruckten Holzschnitten und 6 Tafeln Abbildungen. | [ornate rule] | Leipzig & Heidelberg. | C.F. Winter'sche Verlagshandlung. | 1860.

8°: π⁴ 1-26⁸; 212l.; [i]-viii, [1]-404, [12] p., index, 24 woodcut illus., 6 plates. Page size: 218 x 138 mm.

Contents: [i-ii], Title page, verso blank; [iii], "Vorwort"; [iv], Blank; [v]-viii, "Inhalts-Uebersicht"; [1], "Einleitung"; [2]-92, "Allgemeiner oder vorbereitender Theil"; [93]-389, "Besonderer oder beschreibender Theil"; [390], "Verbesserungen"; [391]-404, "Register"; [2 pgs], "Tafel I."; [2 pgs], "Tafel II."; [2 pgs], "Tafel III."; [2 pgs], "Tafel IV."; [2 pgs], "Tafeln V."; [2 pgs], "Tafeln VI."; [At end], 6 plates.

Scarce. The superb notes and references make this work more than a standard mineralogical text. The author had a good knowledge of the science, as is shown by the many instances where a complete synoptic history of the subject being described is added in a note. The work is divided into two portions. The first treats crystallography, physical properties, specific weight, optical characters, magnetism, electrical qualities, phosphorescence, and concludes with a discussion of the chemical properties and the theoretical framework and nomenclature for the proposed mineral classification. The second portion arranges the species into the system.

Bibliographical references: Dana's 7th (Bibliography): 76. • NUC: 327, 215-6 [NL 0266652].

7. German, 1862 [2nd edition].
Katechismus der Mineralogie. Von Dr. Gustav Leonhard ... Leipzig, Verlagsbuchhandlung von J.J. Weber, 1862.

8°: [8], 110 p., 131 illus. Very scarce.

Bibliographical references: NUC: 327, 215-6 [NL 0266656].

8. German, 1878 [3rd edition].
Katechismus | der | Mineralogie. | Von | Dr. Gustav Leonhard, | a.o. Professor in Heidelberg. | [rule] | Dritte, vermehrte und verbesserte Auflage. | [rule] | Mit 150 in den Text gedruckten Abbildungen. | [ornate rule] | Leipzig | Verlagsbuchhandlung von J.J. Weber | 1878.

8°: viii, 123 p., illus. Scarce.

Bibliographical references: NUC: 327, 215-6 [NL 0266656].

Die Einschlüsse von Mineralien in krystallisirten Mineralien ... (Haarlem, 1854).
See under: Blum, Johann Reinhard.

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