Unusual morphological features of natural diamond samples characterized with Micro Raman Spectroscopy
✍ Scribed by Sachdev, Hermann ;Kramlich, Erwin
- Book ID
- 105364080
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 254 KB
- Volume
- 203
- Category
- Article
- ISSN
- 0031-8965
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✦ Synopsis
Abstract
In the present study, unusual morphological features of natural diamonds were characterized by Micro Raman Spectroscopy. The growth of diamond crystallites through secondary nucleation was observed in microscopic cracks in natural specimens. The protrusion of small gaps in the diamond crystal by the growth medium was leading to the formation of 2^nd^ and higher generation crystallites without the deposition of additional phases. This fact clearly indicates that a highly mobile and volatile flux system has to be held responsible for the secondary diamond growth. Specific features of natural diamond samples can be interpreted as growth forms from volatile or highly mobile liquid species in the C–H–O‐system, thus merging CVD and hydrothermal conditions in the latter system. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)