Fig. 40.-Myrmekite occurs at contact of plagioclases (Pl₁, Pl₂, Pl₃, Pl₄)(An₂₈) with differently oriented K-feldspar

No myrmekite is present on border between two plagioclases. The myrmekitic plagioclase is An₁₄. Crossed polars. Lantian granite, Shaanxi Province.