Revelation 4:6
And before the throne there was a sea of glass, like crystal. And in the midst of the throne, and round about the throne, were four living creatures full of eyes before and behind.
Revelation 4:3
and he that sat was, in appearance, like a jasper and sardine-stone: and there was round about the throne a rainbow, in appearance like an emerald.
Revelation 21:11
having the glory of God: that which gave it light was like a most costly stone, like jasper-stone, brilliant as crystal.
Treasury of Scripture Knowledge
Summary
And the likeness of the firmament upon the heads of the living creature was as the colour of the terrible crystal, stretched forth over their heads above.
The likeness
Bible References
The likeness
Revelation 4:3
and he that sat was, in appearance, like a jasper and sardine-stone: and there was round about the throne a rainbow, in appearance like an emerald.
Revelation 21:11
having the glory of God: that which gave it light was like a most costly stone, like jasper-stone, brilliant as crystal.