Lapis-lazuli or Lazuli. A mineral of a fine azure-blue color, usually occurring in small rounded masses. It is essentially a silicate of alumina, lime, and soda, with some sodium sulphide. It is often marked by yellow spots or veins of sulphide of iron, and is much valued for ornamental work.

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“All Scripture is God-breathed and is useful for teaching, rebuking, correcting and training in righteousness,”
– 2 Timothy 3:16