Archaeologists in Israel unearthed prehistoric hand axes that Homo erectus crafted from stones including fossils and crystals ...

Homo erectus may have deliberately selected rocks embedded with fossils and crystals to craft their hand axes — possibly to ...

Göttingen University researcher Fiorella Arduin Rode working in open pit mine of the study area, Los Catalanes mining district, northern Uruguay. Along with Ametista do Sul in southern Brazil, these ...

Crack open an unassuming stone, and you might just uncover a little conclave of crystals within. Their walls are glittering with quartz, amethyst, or calcite, protected by a hard shell that was shaped ...