Crystal Inclusions in Diamonds and Other Crystals

Abstract:

Single crystal inclusions in natural single crystals bear a lot of information on the genesis and phase stabilities between host and guest crystals. Not only parameters of the natural environment of crystallization may be elucidated, also the history of up-rise within the earth to the surface and the development during procedures, eventually applied by mankind to enhance the physical properties of crystals, may be detectable. Structural reactions resulting in phase separation due to chemical stress during change of physical parameters shed light on the borders of solid solution and exsolution domains. Natural crystals of proper quality allow us to evaluate a time factor in phase stabilities.Crystal structures are able to react by epitaxial growth, by chemical induced twinning, by miscibility reactions, exsolution, and by solid solutions. Some of the phenomena we are meanwhile able to detect by means of (sub-) micro analytical methods. But many problems are left undiscovered between chemical analysis and phase detection due to the local behavior of atoms or ions within a given architecture, which locally provides stable and/or stabilizing crystallization.

• Periodical: Solid State Phenomena (Volumes 203-204)
• Pages: 21-23
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.203-204.21
• Online since: June 2013
• Authors: Wolfgang Hofmeister
• Keywords: Architecture of Crystal Structures, Crystal Inclusion in Crystals, Phase Coexisting

References

[1] J.W. Harris, The geology of diamond: Time and depth profiles from inclusions, Diamond and Related Materials 2 (1993), p.75

DOI: 10.1016/0925-9635(93)90034-y

[2] L. Nasdala, F.E. Brenker, J. Glinnemann, W. Hofmeister, T. Gasparik, J.W. Harris, T. Stachel, I. Reese, Spectroscopic 2D-Tomography: Residual Pressure and Strain around Mineral Inclusions in Diamond. Eur. J. Mineral., 15 (2003), p.931

DOI: 10.1127/0935-1221/2003/0015-0931

[3] L. Nasdala, W. Hofmeister, J. W. Harris, J. Glinnemann, Growth zoning and strain patterns inside diamond crystals as revealed by Raman tomography. Amer. Mineral. 90 (2005), p.745

DOI: 10.2138/am.2005.1690

[4] S. Satitkune, M. Zubko, T. Häger, J. Kusz, W. Hofmeister, Mineral chemistry and structural relationships of inclusions in diamond crystals Acta Min.-Petrog., 6 (2010), p.25

[5] B. Wanthanachaisaeng, T. Häger, W. Hofmeister, L. Nasdala, Raman- und fluoreszenz-spektroskopische Eigenschaften von Zirkon-Einschlüssen in Chrom-haltigen Korunden aus Ilakaka und deren Veränderung durch Hitzebehandlung. Gemologie, 55 (2006), p.123