Limonite in porphyry copper deposits
4:27
B Type Veins in Porphyry Copper Systems
9:38
Limonita [Hematita] en depósitos de pórfidos de cobre
1:05:31
Traveling Lecturer Webinar: Controls on Porphyry Copper and Gold Deposits
20:14
$6000 investment - The best cut ever - Rare Harlequin Black Opal
1:16:01
ODH 101- Porphyry Alteration as an Exploration Tool: Advances in Field Applications - REX
12:41
3 Paradoxes That Will Change the Way You Think About Everything
13:02
ORO EN AMBIENTES EPITERMALES, RESUMEN
49:14