PHOSPHOR AND LIGHT-EMITTING DEVICE

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A phosphor has the general formula (M 2 x , M 3 y , M 4 z ) m M 1 O 3 X (2/n) , wherein M 1 represents at least one element including at least Si and selected from the group consisting of Si, Ge, Ti, Zr, and Sn, M 2 represents at least one element including at least Ca and selected from the group consisting of Ca, Mg, Cd, Co, and Zn, M 3 represents at least one element including at least Sr and selected from the group consisting of Sr, Ra, Ba, and Pb, X represents at least one halogen element, M 4 represents at least one element including at least Eu 2+ and selected from the group consisting of rare-earth elements and Mn, m is in the range 1 ‰¤ m ‰¤ 4/3, n is in the range 5 ‰¤ n ‰¤ 7, and x, y, and z are each in such a range as to satisfy x+y+z = 1, 0.45 ‰¤ x ‰¤ 0.8, 0.05 ‰¤ y ‰¤ 0.45, and 0.03 ‰¤ z ‰¤ 0.35.