Hydrothermal

Hydrothermal: in the case of natural formation, refer to the section “Hydrothermal Genesis.” For artificial formation, it refers to the Hydrothermal Crystallization Method, characterized by the use of autoclaves where crystal growth (e.g., Quartz, Emerald, Aquamarine, Ruby, Sapphire) occurs through the delivery— in an aqueous solution that promotes their solubilization— of nutrient substances necessary for forming the desired material.

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