Khoáng vật quặng
Native Gold
Gold occurs as the metal itself, usually as microscopic grains locked in sulfide or quartz rather than as visible nuggets.
Gold-gold venezuela meieran2 ·
Robert M. Lavinsky ·
CC BY-SA 3.0
· Wikimedia Commons
Khoáng vật quặng
Gold occurs as the metal itself, usually as microscopic grains locked in sulfide or quartz rather than as visible nuggets.
