Garudapurana 1.76

Sūta said: / In the northern region on the Himavat, the semen of that enemy of the gods fell; / it became the source / of the finest bhīṣma gems.

White, resembling a conch or lotus, resembling the syonāka flower, brilliant, / fresh, and diamond-like, / the bhīṣma stones originate from there.

Whoever, with faith, wears a pure bhīṣma gem / mounted in gold and the like upon his neck and other limbs, / always obtains great prosperity.

Beholding him, wild forest dwellers, though nearby, flee far away: / panthers, wolves, śarabhas, elephants, lions, tigers, / and other ferocious beasts.

He incurs no fear from enemies, and they do not mock his master; / a virtuous bhīṣma gem properly attained / becomes a partner upon the finger.

In the ancestral libation it produces satisfaction for the ancestors for many years; / even portents are calmed, as are poisons of snakes, oviparous creatures, rats, and scorpions, / and terrifying dangers from water, fire, enemies, and thieves are destroyed.

Resembling moss or clouds, rough, yellow in radiance, devoid of luster, / dull in brightness, and discoloured— / a wise man should avoid such a stone from afar.

Their price should be determined by the foremost experts through knowledge of place and time; / it is great for those found far away, / and small for those produced nearby.

Thus ends the seventy-sixth chapter, entitled 'Examination of Bhīṣma Gem', in the Ācārakāṇḍa of the first part of the first section of the glorious Garuḍa Mahāpurāṇa.