  The article provides an open discussion and a critical feedback to the
comments of Haack et al. (2015) and emphasizes a significance of the first
macroscopic evidence for a candidate meteorite of a new type: planetary-origin
meteorite composed of silica-rich sedimentary rock. Discussion concerns the
arguments for (i) candidate parental bodies including the Earth, Mars and icy
moons of Saturn and Jupiter; (ii) PGE anomaly versus glassy silicate
microspherules and quartz grains anomaly in the area of the 1908 Tunguska
catastrophe; (iii) isotopic heterogeneity of unmixed silicate reservoirs on
Mars; (iv) possible terrestrial loss or contamination in the noble gas
signatures in meteorites that spent time in the extreme weather conditions; (v)
cosmogenic isotopes and shielding; and (vi) pseudo meteorites. We conclude that
the list of candidate parental bodies for hypothetical sedimentary-origin
meteorites includes, but is not limited by the Earth, Mars, Enceladus,
Ganymede, and Europa. A parental body should be identified based on the entire
body of evidence which is not limited solely by tests of oxygen and noble gas
isotopes whose signatures may undergo terrestrial contamination and may exhibit
significant heterogeneity within the parental bodies.
