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

Response to the Comment by Haack et al. (2015) on the paper by  Anfinogenov et al. (2014): John's stone: A possible fragment of the 1908  Tunguska meteorite