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2. Azure spar - Wikipedia

   en.wikipedia.org/wiki/Azure_spar

   More than others, lazurite or lapis lazuli has historically had a decorative use, classified by A. Fersman and M. Bauer as a first-order semi-precious ornamental stone. Haüyne is valued significantly higher than lapis lazuli, but it is rarely found in jewelry quality suitable for cutting.

3. Lazurite - Wikipedia

   en.wikipedia.org/wiki/Lazurite

   Lazurite and hauyne seem to have the same structure and both are sulfate-dominant minerals. [13] Lazurite is a pigment (opalescent) and has a bright blue streak (especially as a component of the semiprecious stone lapis lazuli). Many hauynes have a white or pale blue streak and are translucent.

4. 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.

5. Azurite - Wikipedia

   en.wikipedia.org/wiki/Azurite

   Lapis lazuli (the pigment ultramarine) was chiefly supplied from Afghanistan during the Middle Ages, whereas azurite was a common mineral in Europe at the time. Sizable deposits were found near Lyons, France. It was mined since the 12th century in Saxony, in the silver mines located there. [17]

6. Blue pigments - Wikipedia

   en.wikipedia.org/wiki/Blue_pigments

   Persian blue: made by grinding up the mineral Lapis lazuli. The most important mineral component of lapis lazuli is lazurite (25% to 40%), a feldspathoid silicate mineral with the formula (Na,Ca) 8 (AlSiO 4) 6 (S,SO 4,Cl) 1–2. Cobalt pigments. Cobalt blue (PB28): cobalt(II) aluminate. Cerulean blue (PB35): cobalt(II) stannate. Cerium uranium ...

7. Lapis Lazuli Is Going to Be Huge This Fall—Here Are Our ...

   www.aol.com/lifestyle/lapis-lazuli-going-huge...

   Here, the prettiest lapis lazuli jewelry to buy now. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Sign in. Mail. 24/7 Help. For premium ...