What is "pitch coal"

Pitch \Pitch\, n. [OE. pich, AS. pic, L. pix; akin to Gr. ?.]

1. A thick, black, lustrous, and sticky substance obtained by boiling down tar. It is used in calking the seams of ships; also in coating rope, canvas, wood, ironwork, etc., to preserve them.

   He that toucheth pitch shall be defiled therewith.
   --Ecclus. xiii. 1.

2. (Geol.) See Pitchstone.

   Amboyna pitch, the resin of Dammara australis. See Kauri.

   Burgundy pitch. See under Burgundy.

   Canada pitch, the resinous exudation of the hemlock tree ( Abies Canadensis); hemlock gum.

   Jew's pitch, bitumen.

   Mineral pitch. See Bitumen and Asphalt.

   Pitch coal (Min.), bituminous coal.

   Pitch peat (Min.), a black homogeneous peat, with a waxy luster.

   Pitch pine (Bot.), any one of several species of pine, yielding pitch, esp. the Pinus rigida of North America.

n. bituminous coal