Rubies and sapphires from winza, central Tanzania
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D. Schwarz | A. Fallick | G. Giuliani | C. Hauzenberger | D. Ohnenstetter | J. Saul | V. Pardieu | B. Laurs | K. Schmetzer | L. Klemm | A. Malsy | E. Erel | G. D. Toit
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