A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c13.26

v1.c13.26

Vajram: the remarks "8 faces and 6 corners" would be correct for an octahedral crystal of diamond; but I know of no crystal form which has at the same time "8 angles." The faces of the diamond are frequently rounded, which may account for the statements about the "female" and "neuter" diamonds. Many transparent minerals give a play of colours through either schillerization or refraction; but the diamond is of course particularly noticeable on account of its high dispersive power."