"18And the building of the wall of it was of jasper: and the city was pure gold, like unto clear glass. 19And the foundations of the wall of the city were garnished with all manner of precious stones. The first foundation was jasper; the second, sapphire; the third, a chalcedony; the fourth, an emerald; 20The fifth, sardonyx; the sixth, sardius; the seventh, chrysolite; the eighth, beryl; the ninth, a topaz; the tenth, a chrysoprasus; the eleventh, a jacinth; the twelfth, an amethyst. 21And the twelve gates were twelve pearls; every several gate was of one pearl: and the street of the city was pure gold, as it were transparent glass."
https://biblehub.com/kjv/revelation/21.htm
"The walls of the cathedrals are made of a transparent and in some places translucent, crystalline substance, through which the golden light shines brightly from within."
"The walls, facades, and decorations of some buildings are made of materials very much resembling enormous pearls, rubies, amethysts, or emeralds.
The smooth paths, winding between green fruit trees and flower meadows, are lined with the substance of smooth and huge plates of polished yellow and brown amber."
https://www.tachyontemple.com/post/light-cities-built-thousands-of-years-ago-from-earlier-3rd-and-4th-human-races
"a ‘heavenly city’, as there is a curious aspect to many of these particular anecdotes which suggests something extraordinary. Often these ‘cities of light’ have a particular quality – they are ‘crystalline’ – or more directly, made of transparent gold."
https://grahamhancock.com/gtaylor4/
"a vast white city floating eerily in the blackness of space.
And the expert quoted NASA sources as saying that the city is definitely Heaven “because life as we know it couldn’t possibly exist in icy, airless space."
https://icestech.info/nasa-hubble-heaven-nhim/
"There is no sun or moon the new Jerusalem."
https://www.blueletterbible.org/faq/don_stewart/don_stewart_154.cfm
"It can be known as a City of Light. Scriptures state that the New Jerusalem will descend out of heaven or the sky. Well by the measurements of this New Jerusalem, it seems to be a Mothership and it can be seen in Outer Space"
https://awakeninghigherself.com/2020/09/28/new-jerusalem-mothership-higher-beings-ready-to-descend-and-ascend/
"Most churches today teach that the Holy City the New Jerusalem will come out of heaven and down to earth at the beginning of the Millennial Kingdom or the one thousand year reign of Christ"
https://www.gracebibletimes.com/when-will-the-new-jerusalem-come-down-to-earth/
A Colossal City in Space
https://www.amazingfacts.org/media-library/study-guide/e/4981/t/a-colossal-city-in-space