Revelation 4:6
and before the throne a glassy sea like crystal; and in the midst of the throne, and round about the throne, are four living creatures filled with eyes in front and in the rear.
Revelation 4:3
and the one sitting was in appearance like unto a jasper and a sardius stone: and a rainbow was around about the throne, in appearance like unto an emerald.
Revelation 21:11
having the glory of God: and her light was like a stone most precious, as a crystalline, jasper stone;
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 the one sitting was in appearance like unto a jasper and a sardius stone: and a rainbow was around about the throne, in appearance like unto an emerald.
Revelation 21:11
having the glory of God: and her light was like a stone most precious, as a crystalline, jasper stone;