rake-veinn.

1789 J. Williams Nat. Hist. Mineral Kingdom I. 26 All the slips found in the coal metals are mineral veins, and of that species of veins which are called by naturalists perpendicular fissures, and by miners, rake veins.

1825 Philos. Trans. (Royal Soc.) 115 430 That part of the country consists of an alternating series of beds of clay slate and fine grained greywacke,..traversed in some places by true rake veins that are metalliferous.

1874 J. H. Collins Princ. Metal Mining (1875) iv. 24 Rake-veins or Lodes appear to occupy fissures in the earth, sometimes parallel to, sometimes cutting across, the general bedding.

1904 Columbia Law Rev. 4 376 The Derbyshire rake-veins to which this measure was applied were..ideal veins, being nearly perpendicular.

1994 M. Palmer & P. Neaverson Industry in Landscape, 1700–1900 i. 3 Rake-veins, or lodes in the older literature, are the major veins which may run across country for a mile or more, and are, in essence, a nearly vertical wall of minerals.