Silver halide photographic material and silver halide emulsion

摘要

A silver halide emulsion having a high silver chloride content of about 95 mol % or more, wherein about 30% by number or by weight or more of the silver halide grains are those having one twin plane in the crystal such that the crystal planes constituting the surface of each grain consist essentially of (100) planes and having a silver bromide-localized phase having a relatively higher silver bromide content in the part of intersection of the twin plane and the surface of the grain and suitable for rapid processing with high sensitivity and excellent gradation characteristic and reciprocity law characteristic.