Fig. 2: Sulfide van der Waals minerals. | npj 2D Materials and Applications

Fig. 2: Sulfide van der Waals minerals.

From: Naturally occurring van der Waals materials

Fig. 2

a, d, g, j, m, p, s Three-dimensional representation of the crystal structure of molybdenite 2H154, molybdenite 3R154, tungstenite 2H155, orpiment156, anorpiment77, stibnite157, and getchellite158,159, respectively. b, e, h, k, n, q, t Pictures of mineral rocks of molybdenite 2H, molybdenite 3R, tungstenite 2H, orpiment, anorpiment, stibnite, and getchellite, respectively. d, f, i, l, o, r, u Optical microscopy images of few-layer flakes mechanically exfoliated from the bulk crystals shown in b, e, h k, n, q, t, respectively.

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