References

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Gübelin E. and Peretti A. (1998): Die Saphire von Andranondambo. Eine neue Edelsteinlagestätte auf Madgaskar, Neue Zürcher Zeitung. 15th April, No. 86, P. 65.

Chikayama A. (1989) Gemstones from Madagascar // XXII International Gemmological Conference, Milan, Italy

Gübelin E.J. & Peretti A. (1997) Sapphires from the Andranondambo mine in SE Madagascar: evidence for metasomatic skarn formation // J. Gemm., 25, 7, pp. 453-516

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Kennedy W.Q. (1964) The structural differentiation of Africa in the Pan-African (+/- 500 Ma) tectonic episode // Ann. Rep. Rs Inst. African Geol., Univ. Leeds, 8, pp. 48-9

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Lacroix A. (1922) Mineralogie de Madagascar // Challamel, ed., Paris, 3 volumes

Milisenda C.C. & Henn U. (1996) Compositional characteristics of sapphires from a new find in Madagascar // J. Gemm., 25 (3), pp. 177-84

Rakotondrazafy M.A.F., Monie B. & Cuney M. (1996) Mode of formation of hibonite (Ca Al12 O 19) within the U-Th skarns from the granulites of SE Madagascar // Contrib. Mineral. Petrol., 123, pp. 190-201

Schwarz D., Petsch E.J. & Kanis J. (1996) Sapphires from the Andranondambo Region, Madagascar // Gems & Gemology, 32 (2), pp. 80-99

Williams C.T. & Giere R. (1996) Zirconolite: a review of localities world-wide, and a compilation of its chemical compositions // Bull. Nat. Hist. Mus. Lon. (Geol.), 52 (1), pp. 1-24

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