Cross reference
Revelation 21:18
18 The construction of its wall was jasper. The city was pure gold, like pure glass.
Revelation 21:11
11 having the glory of God. Her light was like a most precious stone, as if it was a jasper stone, clear as crystal;
Revelation 21:21
21 The twelve gates were twelve pearls. Each one of the gates was made of one pearl. The street of the city was pure gold, like transparent glass.
Revelation 21:19
19 The foundations of the city's wall were adorned with all kinds of precious stones. The first foundation was jasper; the second, sapphire{or, lapis lazuli}; the third, chalcedony; the fourth, emerald;