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.
Geode is a type of sedimentary and volcanic rock that is hollow, vaguely circular rock, in which masses of mineral matter (which may include crystals) are sequestered. The term 'Geodes' was derived ...