Abstract
composition with Pyr (46.72-48.35), Alm (39.77-48.35), Gr (10.03-10.56) and Sps (1.14-1.31) mol %. This garnet is referred to as iron-rich pyrope or pyrope ‐ almandine. Chemical compositions reflect their crystallization from magma (Mg-Fe isomorphism).The high-Mg, and low Na of the studied garnet are consistent with high temperature eclogitic garnet associated with diamond. Fluid inclusions study indicates that garnet was deposited from high saline and high temperature fluids. Beryl is present as euhedral hexagonal crystals with different color (green emerald, blue aquamarine, and yellow heliodors). It enclosed cassiterite, wolframite and barite micro-inclusions, which support that the studied beryl is connected to hydrothermal ore-bearing fluids. Fluid inclusions study reveal that beryl was deposited due to boiling process of medium salinity (9-12 wt.% NaCl eq.), and medium temperature (180-240 °C) fluids. Pressure of trapping was estimated between 400 and 700 bars.
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