Molar refraction of quartz family minerals

Nataraju, S. K. ; Krishnamurti, D. (1984) Molar refraction of quartz family minerals Proceedings of the Indian Academy of Sciences - Earth and Planetary Sciences, 93 (3). pp. 309-317. ISSN 0253-4126

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Official URL: http://www.ias.ac.in/j_archive/epsci/93/3/309-317/...

Related URL: http://dx.doi.org/10.1007/BF02839165

Abstract

Different polymorphs of silica and the opals exhibit significant variations in densities. The paper discusses and correlates the variations in the molar refraction with density. It emerges that in different polymorphs of silica, the increase in density involves a corresponding increase in the characteristic dispersion frequencies leading to a decrease in the molar refraction. The variation of the molar refraction with density can be represented in terms of an elementary formula. The variation of the molar refraction of opals with the water content in them is also accounted for.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Molar Refraction; Silica; Quartz; Opals; Polymorphism
ID Code:33314
Deposited On:29 Jun 2011 10:17
Last Modified:17 May 2016 16:09

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