파키스탄 북부 Gilgit-Baltistan 지역에서 산출된 아쿠아머린의 특성 연구

초록

We applied gemological analytical approaches on Aquamarine from the Gilgit-Baltistanof Northern Areas, Pakistan. The standard gemological testing indicates that they are consistent withgeneral characteristics of natural aquamarines. We have identified the inclusions of Tantalite-Mn byRaman analysis. It indicates that they occurs in association with the veins of Be-rich coarse pegmatite. And the results of chemical analyses, infrared absorption spectroscopy and Raman spectroscopyindicate that H2O molecules in channel mostly exist in Type-I and a little Type-II with low alkali ion. The comparison of relative peak intensity of FT-IR analysis can be used for prediction of Na2Ocontent within not only emerald but also aquamarine.

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