… In this study, we analyzed rubies and blue sapphires from … marble-type rubies and metamorphic
blue sapphires, using the … V plot, rubies from the Andilamena region in Madagascar [59…

… -treated rubies from natural ones. In this paper, rubies from Madagascar and Mozambique
… between untreated and heat-treated rubies from Madagascar and Mozambique. Moreover, …

… sapphire crystals, with colors ranging from blue to purple and, rarely, purplish red (ruby), have
… The total production of sapphire rough from Marosely, through June 2006, is estimated at …

… to contain ruby and sapphire, where the erupting magma captures the ruby and sapphire
formed … Ruby and sapphire associated with basalt are found in Thailand/Cambodia, New South …

… ruby [5] and the other on blue sapphire [19]. The other studies only presented LA-ICP-MS
results, but covered a wide range of sapphire and ruby … V/Cr >1) ruby and sapphire exists in the …

… Madagascar and Sri Lanka with specific internal features (milky, silky, or silky-milky) were
heat treated for this study, with and without Be, by blue-sapphire … such as ruby, sapphire, emer…

… Madagascar is host to an abundance and variety of gem … and, rarely, purplish red (ruby),
have been recovered mainly in … These sapphires are jrom a neif deposit known as Marosely. …

… Some important colored stones included emeralds from Zambia, rubies from Madagascar
and Tanzania, sapphires from Madagascar (eg, figure 1), spinels from Tanzania and Myanmar, …

… Nowadays, even blue sapphires are hard to find in Pailin, and … offered in Pailin actually come
from Africa and Madagascar. … by Pardieu on Mozambique rubies and sapphires. Indeed, a …

… Corundum from Andapa, Antsirabe and Nosibe in Madagascar in this study is eroded
fragments of sapphires approximately 3-4 mm and normally show their orientation. Almost all of …