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A '''hydrothermal vein''' is a [[fracture]] in [[rock]]s in which [[mineral]]s have been deposited from hot [[magma]]tic emanations rich in [[water]].


==Sources==
*Pellant, Chris. ''The Complete Book of Rocks and Minerals'', Dorling Kindersley Inc.: New York (1995), '''p. 251''

[[Category:Volcanology]]
[[Category:Mineralogy]]
nsTeam1RO, nsTeam1RW, nsTeam1_talkRO, nsTeam1_talkRW
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