CRYSTALLINE MATERIAL, AND LIGHT-EMITTING DEVICE AND WHITE LED USING SAME

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This crystalline material is represented by M12a(M2bLc)M3dOyNx, where : M1 is at least one type of element selected from the alkali metals; M2 is at least one type of element selected from Ca, Sr and Ba; M3 is at least one type of element selected from Si and Ge; L is at least one type of element selected from the rare earth elements, Bi and Mn; a is 0.9 to 1.5; b is 0.8 to 1.2; c is 0.005 to 0.2; d is 0.8 to 1.2; x is 0.001 to 1.0; and y is 3.0 to 4.0.