解理 Traditional form: 解理 Pinyin (reading): jiělǐ Definitions: cleavage (splitting of minerals such as slate along planes) Characters: 解 - to explain; to loosen; to unfasten, to untie 理 - science, reason, logic; to manage Traditional characters: 解 - to explain; to loosen; to unfasten, to untie 理 - science, reason, logic; to manage