Hydrothermal vein (lode)
Ore deposit
Hot water circulating through fractured rock carries dissolved metals and drops them as it cools, filling the cracks with sheets of quartz and ore. A lode is a vein worth mining; where the rock is shot through with small veinlets the whole mass is mined.
- Rocks
- Granite
- Minerals
- Quartz, Gold, Silver, Cassiterite, Galena, Sphalerite, Chalcopyrite, Kyanite, Rose Quartz, Rhodochrosite, Bismuth, Scheelite, Joaquinite, Neptunite, Siderite, Stibnite, Wolframite, Arsenopyrite, Chalcocite, Tetrahedrite, Enargite, Acanthite, Proustite, Pyrargyrite, Freibergite, Sylvanite, Calaverite, Stannite, Nickeline, Skutterudite, Cobaltite, Carrollite, Bismuthinite, Manganite, Molybdenite
- Metals
- Bismuth, Cobalt, Copper, Gold, Iron, Lead, Manganese, Molybdenum, Nickel, Silver, Tin, Tungsten, Zinc
- Worked
- Before and since the industrial age
- Examples
- Tin lodes of Cornwall, mined since the Bronze Age; Ore veins of the Ore Mountains (Erzgebirge), Saxony and Bohemia; Comstock Lode, Nevada, silver, 1859
Sources
- Vein (geology). Wikipedia.
- Lode. Wikipedia.
- Mining in Cornwall and Devon. Wikipedia.
- Ore Mountains. Wikipedia.
- Comstock Lode. Wikipedia.
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