(Born: Zara, Dalmatia, 1855; Died: 1925) Italian mineralogist.

Viola's father was a sea captain. He was educated in Dalmatia, Istria, Graz, Vienna and Rome, graduating from the last as a civil engineer in 1880. For several years, with the help of a scholarship from the Italian Corps of Mines, he attended the Mining Academy in Berlin. Returning to Italy, he was appointed geologist-engineer, working on irrigation schemes and geological maps. In 1900 he was appointed chief engineer of the Iglesias mining district and director of the school of mines there. In 1905, he was appointed professor of mineralogy at the University of Parma. For many years he spent pleasurable summers studying crystallography with P. Groth in Munich and V. Goldschmidt in Heidelberg.

Biographical references: Mineralogical Magazine: 21 (1927), no. 117, 255. • Poggendorff: 4, 1569-70 & 5, 1312-3 & 6, ???. • Sarjeant, Geologists, 1980: 3, 2340. • Zeitschrift der Kristallographie: 64 (1926), 260-4 [by M. Ferrari].

1. German, 1904 [German edition].
Grundzüge | der | Kristallographie | von | Prof. C.M. Viola | Bergingenieur, Staatsgeologe Und | Dozent Der Mineralogie In Rom | Mit 453 Abbildungen Im Text | Leipzig | Verlag Von Wilhelm Engelmann | 1904.

8°: x, 389 p. Very scarce.

Bibliographical references: Dana's 7th (Bibliography): 82.

2. Italian, 1920.
Carlo Viola | Prof. ord. di mineralogi nella R. Univresità di Parma | [rule] | Trattato | di | Cristallografia | [rule] | Con 591 incisioni nel testo dagli originali dell'Autore | [Printer's device, incorporating the initial "H"] | Ulrico Hoepli | Editore-Libraio Della Real Casa | Milano | [rule] | 1920.

8°: Very scarce.

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