|Easton's Bible Dictionary|
(Hebrews yashpheh, "glittering"), a gem of various colours, one of the twelve inserted in the high priest's breast-plate (Exodus 28:20). It is named in the building of the New Jerusalem (Revelation 21:18, 19). It was "most precious," "clear as crystal" (21:11). It was emblematic of the glory of God (4:3).
Noah Webster's Dictionary
(n.) An opaque, impure variety of quartz, of red, yellow, and other dull colors, breaking with a smooth surface. It admits of a high polish, and is used for vases, seals, snuff boxes, etc. When the colors are in stripes or bands, it is called striped / banded jasper. The Egyptian pebble is a brownish yellow jasper.
Int. Standard Bible Encyclopedia
See STONES, PRECIOUS.
Jasper (8 Occurrences)
Revelation 4:3 that looked like a jasper stone and a sardius. There was a rainbow around the throne, like an emerald to look at. (WEB KJV WEY ASV BBE DBY WBS YLT NAS RSV NIV)
Revelation 21:11 having the glory of God. Her light was like a most precious stone, as if it was a jasper stone, clear as crystal; (WEB KJV WEY ASV BBE DBY WBS YLT NAS RSV NIV)
Revelation 21:18 The construction of its wall was jasper. The city was pure gold, like pure glass. (WEB KJV WEY ASV BBE DBY WBS YLT NAS RSV NIV)
Revelation 21:19 The foundations of the city's wall were adorned with all kinds of precious stones. The first foundation was jasper; the second, sapphire; the third, chalcedony; the fourth, emerald; (WEB KJV WEY ASV BBE DBY WBS YLT NAS RSV NIV)
Exodus 28:20 and the fourth row a chrysolite, an onyx, and a jasper: they shall be enclosed in gold in their settings. (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
Exodus 39:13 and the fourth row, a chrysolite, an onyx, and a jasper. They were enclosed in gold settings. (WEB KJV JPS BBE DBY WBS YLT NAS RSV NIV)
Job 28:18 No mention shall be made of coral or of crystal. Yes, the price of wisdom is above rubies. (See NIV)
Ezekiel 28:13 You were in Eden, the garden of God; every precious stone adorned you: ruby, topaz, emerald, chrysolite, onyx, jasper, sapphire, turquoise, and beryl. Gold work of tambourines and of pipes was in you. In the day that you were created they were prepared. (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)