Peruvian Blue Opal Pendant - SOLD 1.157" paleolithic The rapid change in pressure

The rapid change in pressure forces the gasses inside the lava to escape at rapid speed

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these two dinosaurs came head to head—an iconically-armored herbivore and a terrifying apex predator facing off in battle

the orbiters were amazing tools for furthering our scientific understanding of the stars

Peruvian Blue Opal Pendant - SOLD 1.157" paleolithic The rapid change in pressureAndean blue opal is a translucent form of the gemstone, often infused with dark brown or black dendritic crystals across its surface. Like other opals, the gemstone forms from silica rich water filtering through porous sandstone, depositing the mineral to be heated and pressurized into the beautiful gem. This pendant contains a polished 1. 157" gem of Andean blue opal from Peru set into a sterling silver prong. It comes with an 18" silver chain in a