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We report the search for 7Be isotope in the outbursts of the classical novaV6595 Sgr by means of high resolution UVES observations taken at the ESO VLT inApril 2021, about two weeks after discovery and under difficult circumstancesdue to the pandemic. Narrow absorption components with velocities at about-2620 and -2820 km/s, superposed on broader and shallow absorption, areobserved in the outburst spectra for the 7BeII 313.0583, 313.1228 nm doubletresonance lines, as well as in several other elements such as CaII, FeI, MgI,NaI, HI but LiI. Using CaII K line as a reference element, we infer N(7Be)/N(H)~ 7.4 x 10^{-6}, or ~ 9.8 x 10^{-6} when the 7Be decay is taken into account.The 7Be abundance is about half of the value most frequently measured in novae.The possible presence of over-ionization in the layers where 7Be is detected isalso discussed. Observations taken at the Telescopio Nazionale Galileo (TNG) inLa Palma 91 days after discovery showed prominent emission lines of Oxygen andNeon which allow to classify the nova as ONe type. Therefore, although 7Be isexpected to be higher in CO novae, it is found at comparable levels in bothnova types.

7Be in the outburst of the ONe nova V6595 Sgr