References
Gübelin E. and Peretti A. (1997): Sapphires from Adranondambo mine in SE Madagascar: evidence for metasomatic skarn formation. Journal of Gemmology, Vol. 25, No. 7., pp. 453 - 470.
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
Johnson M.L. & Koivula J.I. (1996) Gem News. Update on Madagascar sapphires
// Gems & Gemology, 32 (3), p. 217
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
Kiefert L., Schmetzer K., Krzemnicki M.S., Bernardt H.J., and Hänni H.A. (1996)
Sapphires from the Andranondambo area, Madagascar // J. Gemm., 25 (3), pp. 185-209
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