is mentioned in Revelation 21:20 , as the ninth of the foundation stones of the wall of the heavenly Jerusalem; the stone is of a yellow color (though there are topazes of other colors) and is almost as hard as the diamond. It has the power of double refraction, and when heated or rubbed becomes electric. In the Sept., Exodus 28:17; 39:10; Job 28:19; Psalm 119:127 , "(gold and) topaz;" Ezekiel 28:13 .
With over 3,400 entries, this timeless classic is THE reference guide to New Testament Greek words for English readers. It explains the meaning of the original Greek with the added dimension of the context of the Greek word.Wikipedia
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