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Back-scattered electron images illustrating textural content for apatite occurrence in diverse lunar lithologies. Ap, apatite; Bd, baddeleyite; Cpx, clinopyroxene; Fa, fayalite; Fe, iron–nickel metal; Gl, glass; Ilm, ilmenite; Kfs, K-feldspar; Mer, merrillite; MI, melt inclusion; Opx, orthopyroxene; Pl, plagioclase; Sil, silica; Symp, symplectites; Tro, troilite; Trq, tranquillityite.
