Lithostatic Pressure: the pressure acting on every grain of rock at depth, transmitted from all directions, similar to hydrostatic pressure. It is measured by the weight of the column of rock above the unit surface at the point considered.
Lithostatic Pressure: the pressure acting on every grain of rock at depth, transmitted from all directions, similar to hydrostatic pressure. It is measured by the weight of the column of rock above the unit surface at the point considered.
IGR (Rivista Italiana di Gemmologia/Italian Gemological Review) è la rivista gemmologica internazionale italiana, nata nel 2016 da Gem-Tech con l’obiettivo di sviluppare in Italia un network informativo per Gemmologi e per professionisti quotidianamente impegnati nel settore delle pietre preziose.
IGR – Rivista Italiana di Gemmologia, the Italian Gemological Review, is the leading International Gemological Magazine in Italy masterminded by Gem-Tech Gemological Institute, a broad information framework for Gemologists as well as professionals involved daily in the gemstone business.
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