Revelation 21:18

18 The construction of its wall was of jasper; and the city was pure gold, like clear glass.

A. The wall is of jasper (perhaps diamond) and the city is pure gold.

B. The gold is so pure that it is clear like glass. In our understanding of the terms clear as glass and pure gold are not synonyms. How can it be both?

C. I would remind you that John is attempting to describe that which is beyond our ability to describe. He is trying to paint a picture of what we can not even imagine.