Data for: Tunable rheological-tribological performance of "green" gel-like dispersions based on sepiolite and castor oil for lubricant applications

X-ray diffraction tests were carried out at 23 ºC in a D8 Advance X-ray diffractometer (Bruker-AXS, Germany) with Cu-K radiation at a generator voltage of 40 kV, a current of 30 mA and a wavelength of 0.15406 nm. The samples were scanned over an angular range of 2θ (1.5–40°), with a scan rate of 2 min-1.