Abstract:
The objective of this research is to study characteristic of Pink sapphire from Madagascar, which pink sapphire with beautiful colors Is popular in trading. Deposits of pink sapphire is Ilakaka-Sakaraha, which is located in the south-west of the country in the province of TULEAR.
Fifteen samples under this study are Transparent. Their luminescences are strong under long wave and inert under short wave. Minerals Inclusion are identified as zircon and rutile needles, various types of inclusions such as growth Lines, Liquid Inclusion and fingerprint are often found.
Based on advance analyses, strong absorptions of chromium (401-412, 553-560 and 692 -694 nm) and iron (377 - 388, 449 450 nm) under UV-Vis-NIR. For element analyses contain Al2O3 (~ 97.78 97.60 wt%), MgO (~ 1.49 - 1.44wt%), TiO2 (~0.39-0.48 wt%), Fe2O3(~ 0.21-0.23 wt%) and Cr2O3 (~ 0.09-0.10 wt%), V2O5 and Ga2O3 are small amount.