A new exhibition in Paris, titled “Golden Thread,” shows how the precious metal has been used in clothing from North Africa ...

Mineralization occurs as both chalcopyrite and molybdenite disseminations, and in stockworks of Early Biotite and B veins. The best result obtained so far is 1.8 metres at 0.2% Cu, from 146.7-148.50 ...

A new study reveals that sexual partners exchange unique bacterial signatures, detectable even when DNA evidence is absent.