Job 28:6

The stones of it are the place of sapphires: and it hath dust of gold.

The stones of it are the place of sapphires,.... In some parts of the earth its stones are a quarry of sapphires, put here for all precious stones: this is a most excellent precious stone, of a sky colour, with golden specks, and was one of the stones in the breast plate of the high priest; and by which are represented the pavement under the feet of the God of Israel, the throne of Christ, his bowels and affections for his people, the comeliness of them, and the glory of his church in the latter day, Exodus 24:10;

and it hath dust of gold; some parts of the earth abound with the dust of gold; its dust is gold, or it hath gold as plenty as dust; though some think this refers to the sapphire in the preceding clause, which, as Pliny says {d}, has "pulvis aureus", dust of gold, in it, and shines and sparkles with golden points, or specks; and so say other writers {e}; but the word used rather signifies clods, lumps, masses of gold, which better agree with the earth; and, besides, no very good reason can be given why there should be such a particular description of the sapphire; whereas the earth is the original of that, and of all the other things before spoken of.

{d} Nat. Hist. l. 37. c. 9.
{e} Ruaeus de Gemmis, l. 2. c. 2.