Hello Precious and valuable stones in ophiolite complexes originate from the lower part of the continental crust or the upper part of the oceanic crust, which were formed under high pressure and heat. According to the chemical composition of these stones, precious minerals such as spinel, diopside and lisonite, minerals from the aluvine and pyroxene groups, as well as secondary minerals such as garnet, are seen, which are valued based on color type, crystal quality and size.
Ophiolites are exposed along subduction zones and as result of this high pressure minerals come into existence. A typical example is the aegerine-jadeite s.s.s. The jadeite-enriched end member are concentrated in jade deposits along such geodynamic suture zones (see Central America).
HGD
