Figure 1: Mechanical response of single-crystal methane hydrate.
From: Mechanical instability of monocrystalline and polycrystalline methane hydrates

(a) Stress–strain relationships for single-crystal methane hydrate. The molecular cohesive energy distributions and corresponding localized molecular structures (b) initially, (c) at onset of fracture, (d) immediately after initial fracture and (e) at a strain of 0.18.