Fissure Vein
Defined in 1 dictionary — Black's (1910)
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
In mining law. A vein or lode of mineralized matter filling d pre-existing fissure or crack in the earth's crust extending across the strata and goh erally extending indefinitely downward, See Crocker v. Manley, 164 III. 282, 45 N. E. 577, 56 Am. St. Rep. 196.