Study and analysis of the properties of organic and hydrocarbon aromatic metals
  • Article Type: Research Article
  • Eurasian Journal of Biosciences, 2020 - Volume 14 Issue 1, pp. 651-657
  • Published Online: 15 Mar 2020
  • Open Access Full Text (PDF)


Organic minerals are naturally occurring organic compounds with both a defined chemical composition & crystallographic properties. Their presence reflects the high concentration of certain organic compounds in natural environments. Therefore, the origin & the processes of formation of organic minerals will allow us to undress & the fate & behavior of organic molecules in the lithosphere. In order to contribute to the development of new developments in mineralogy, we divide organic minerals into two groups: (1) ionic organic minerals, in which organic anions & various actions are linked by ionic bonds, & (2) molecular organic minerals, in which organic electron molecules are linked to each other by weak intermolecular interactions. This overview includes four main themes. The first section deals with the general definition of organic minerals & the two groups named above. The second deals with the crystallochemistry & geochemistry of oxalates, the most typical ionic organic minerals. We first discuss the role of (H2O) 0, because most minerals in this group incorporate (H2O) 0 in their crystal structures. Then, we describe the phase relationships among oxalated calcium minerals, hydrated & anhydrous, & in particular their structural hierarchy, these compounds being the most abundant organic ionic minerals. In addition, we describe by way of example the weak effect of Jahn-Teller caused by the Fe2 + ion in humboldtin, [Fe2 + (C2O4) • 2H2O]. The Fe2 + ion causes a distortion of the octahedra of this organic mineral, although the effect is barely detected in inorganic minerals. The third theme deals with crystallochemistry & the formation process of aromatic polycyclic hydrocarbon (PAH) minerals, which are the most typical of the class of molecular organic minerals. In particular, we examine the case of karpatitis (C24H12) & idrialite (C22H14). We conclude with a summary of the characteristics of organic minerals & a discussion of their contribution to the earth sciences & planets.


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