학술논문
Peculiarities of the irisation in precious opals in view of their mosaic-cluster (frustumation) inner fabric.
Document Type
Article
Source
Subject
*OPALS
*GEMS & precious stones
*PHOTOLUMINESCENCE
*SPATIAL distribution (Quantum optics)
*RAMAN spectroscopy
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Language
ISSN
1028-334X
Abstract
A direct correlation was shown for the first time between mosaic irisation patterns in synthetic and natural precious opals (from Australia, Ethiopia, Honduras, Slovakia, and Russia) and their frustumational (lump or mosaic-cluster) inner structure by means of photoluminescence, X-ray phase analysis, IR and Raman spectroscopy, and scanning electron microscopy. [ABSTRACT FROM AUTHOR]