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2. Lapis lazuli - Wikipedia

   en.wikipedia.org/wiki/Lapis_Lazuli

   Lapis lazuli (UK: / ˌ l æ p ɪ s ˈ l æ z (j) ʊ l i, ˈ l æ ʒ ʊ-,-ˌ l i /; US: / ˈ l æ z (j) ə l i, ˈ l æ ʒ ə-,-ˌ l i /), or lapis for short, is a deep-blue metamorphic rock used as a semi-precious stone that has been prized since antiquity for its intense color.

3. Ultramarine - Wikipedia

   en.wikipedia.org/wiki/Ultramarine

   Ultramarine is a deep blue color pigment which was originally made by grinding lapis lazuli into a powder. [2] Its lengthy grinding and washing process makes the natural pigment quite valuable—roughly ten times more expensive than the stone it comes from and as expensive as gold.

4. Gemstone Meanings: Power and Significance of the 25 Most ...

   www.aol.com/gemstone-meanings-power-significance...

   Lapis Lazuli How stunning is that vivid blue hue? “This beautiful vibrant blue gemstone is long prized for its ability to enhance wisdom and assist in allowing truth to come forth,” Salzer says.

5. Blue in culture - Wikipedia

   en.wikipedia.org/wiki/Blue_in_culture

   Lapis lazuli, a semi-precious stone, has been mined in Afghanistan for more than three thousand years, and was exported to all parts of the ancient world. [9] Blue glazed faience ornaments have been found to have been produced during 4th millennium Indus Valley civilization (present day India and Pakistan). [10]

6. Sapphire - Wikipedia

   en.wikipedia.org/wiki/Sapphire

   The Greek term for sapphire quite likely was instead used to refer to lapis lazuli. [72] During the Medieval Ages, European lapidaries came to refer to blue corundum crystal by "sapphire", a derivative of the Latin word for blue: sapphirus. [74] The sapphire is the traditional gift for a 45th wedding anniversary. [75]

7. Blue pigments - Wikipedia

   en.wikipedia.org/wiki/Blue_pigments

   Blue pigments are natural or synthetic materials, usually made from minerals and insoluble with water, used to make the blue colors in painting and other arts. The raw material of the earliest blue pigment was lapis lazuli from mines in Afghanistan, that was refined into the pigment ultramarine.