QUARRY, or Quarrel, amongst glaziers, means a pane of glass cut in the form of a diamond.

Quarries are of two kinds, square and long, each of which is of a different size, and expressed by the number of the pieces that make a foot of glass, viz. eighths, tenths, eight-teenths, and twentieths; but all the sizes are cut to the same angles, the acute angle in the square quarrels being 77^{\circ} 19', and in the long ones 67^{\circ} 21'.