² tn On the term ἰάσπιδι (iaspidi) BDAG 465 s.v. ἴασπις states, “jasper, a precious stone found in various colors, mostly reddish, somet. green…brown, blue, yellow, and white. In antiquity the name was not limited to the variety of quartz now called jasper, but could designate any opaque precious stone. Rv 21:18f. W. λίθος 4:3 (TestSol C 11:8). λίθος ἴασπις κρυσταλλίζων a stone of crystal-clear jasper 21:11 (cp. Is 54:12); perh. the opal is meant here; acc. to some, the diamond.”