Fig. 5From: Sintering polycrystalline olivine and polycrystalline clinopyroxene containing trace amount of graphite from natural crystalsRaman spectra of sintered a olivine and b clinopyroxene. Samples were sintered for 2 h at different temperatures: 1130–1350 °C for olivine and 1130–1280 °C for clinopyroxeneBack to article page