Exodus 28:18
turquoise <05306> [emerald.]
{Nophech,} an emerald, the same with the ancient {smaragdus;} one of the most beautiful of all the gems, and of a bright green colour, without any mixture.
sapphire <05601> [sapphire.]
emerald <03095> [diamond.]
Exodus 39:11
emerald <03095> [a diamond.]
The word {yahalom} may mean the diamond, from {halam,} to beat, smite, because of its extreme hardness, by which it will beat to pieces the other stones. It is a fine pellucid substance never debased with any admixture of other matter; susceptible of elegant tinges from metal-line particles; giving fire with steel; not fermenting with acid menstrua; scarcely calcinable by any degree of fire; and of one simple and permanent appearance in all lights. It is the hardest and most valuable of all gems; when pure, perfectly clear and pellucid as the clearest water, and eminently distinguished from all other substances by its vivid splendour, and the brightness of its reflections.
