- A mineral having many varieties differing in color and in
their constituents, but with the same crystallization (isometric), and
conforming to the same general chemical formula. The commonest color is
red, the luster is vitreous, and the hardness greater than that of
quartz. The dodecahedron and trapezohedron are the common forms. - A tackle for hoisting cargo in our out.
Definition
[ n.]