¹⁸ Its wall was made of gray quartz. The city was made of pure gold, as clear as glass. ¹⁹ The foundations of the city wall were beautifully decorated with all kinds of gems: The first foundation was gray quartz, the second sapphire, the third agate, the fourth emerald, ²⁰ the fifth onyx, the sixth red quartz, the seventh yellow quartz, the eighth beryl, the ninth topaz, the tenth green quartz, the eleventh jacinth, and the twelfth amethyst.