Vein Definition A tabular or sheet-like body of minerals deposited in a fracture or fissure in rock. Often contains valuable minerals like gold or silver. Related Terms Lode Mineral Deposit See Also Lode Gold News Related News Great Pacific Gold expands mineralisation zones at Wild Dog Project 2026-08-17 Phase one drilling begins at Decade’s Bonaparte copper-gold project 2026-08-08 Buscar Company expands Treasure Canyon mining claims 2026-07-31