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Table 2 The CIE Lab* values of Al/MnO₂ composite pigments (S2, S4)

From: Preparation and Angle-Dependent Optical Properties of Brown Al/MnO₂ Composite Pigments in Visible and Infrared Region

Sample	Angle	L*	a*	b*
S2	15°	88.17	1.42	10.78
	25°	81.05	1.13	9.86
	45°	66.13	1.07	8.20
	75°	52.59	0.87	7.46
	110°	45.41	1.09	7.63
S4	15°	62.95	2.65	14.92
	25°	59.22	2.42	14.50
	45°	51.40	2.19	13.61
	75°	44.25	2.27	13.39
	110°	38.90	2.45	12.85

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