Sakurai's Object revisited: new laboratory data for carbonates and melilites suggest the carrier of 6.9 $\mu$m excess absorption is a carbonate

J. E. Bowey, A. M. Hofmeister

We present new room-temperature 1100 - 1800 cm^{-1} spectra of melilite silicates and 600 - 2000 cm^{-1} spectra of three randomly orientated fine-grained carbonates to determine t…