How phantasmagorical his visions were! John saw something indescribable and yet he tried with all his might to depict what Jesus looked like on the throne in the book of Revelation. In his book, Crazy Love, Francis Chan reminded me of two words John used to describe Jesus on the throne. Jasper and carnelian.
“At once I was in the Spirit and there before me was a throne in heaven with someone sitting on it. And the one who sat there had the appearance of jasper and carnelian.” Revelation 4:3
According to Wikipedia, the online encyclopedia, “Jasper is an opaque, impure variety of silica, usually red, yellow or brown in color,” while carnelian “is a reddish-brown mineral which is commonly used as a semi-precious gemstone”.