A substantially light-insensitive thermographic recording material comprising a support and a thermosensitive element, the thermosensitive element containing silver behenate including phase I silver behenate having an X-ray diffraction spectrum upon irradiation with a copper K.alpha..sub.1 X-ray source with Bragg angles 2.THETA. of 4.53.degree., 5.96-6.05.degree., 7.46-7.56.degree., 8.90-9.12.degree., 10.45-10.66.degree., 12.02-12.12.degree., 13.53-13.62.degree., a reducing agent therefor in thermal working relationship therewith and a binder, wherein the thermographic recording material is capable upon thermal development of containing 1% of phase II silver behenate, having an X-ray diffraction spectrum upon irradiation with a copper K.alpha..sub.1 X-ray source with Bragg angles 2.THETA. of 5.34-5.78.degree., 6.12-6.41.degree., 7.68-7.79.degree., 8.30-8.59.degree., 9.36-9.84.degree., 10.6-10.96.degree., and/or phase III silver behenate phase, having an X-ray diffraction spectrum upon irradiation with a copper K.alpha..sub.1 X-ray source with Bragg angles 2.THETA. of 4.76-4.81.degree., 5.9-6.3.degree., 6.76-7.35.degree., 8.27-8.44.degree. and 9.06-9.43.degree., which is stable at 25.degree. C., with respect to the quantity of the phase I silver behenate in the thermographic recording material before said thermal development; a recording process therefor; and use of the above-defined phase II silver behenate stabilized at 25.degree. C. and/or the above-defined phase III silver behenate stabilized at 25.degree. C. as a tone modifier in thermographic recording materials.