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Azurite or Azure spar [5]: 14 is a soft, deep-blue copper mineral produced by weathering of copper ore deposits. During the early 19th century, it was also known as chessylite, after the type locality at Chessy-les-Mines near Lyon, France. [3]
Lazurite or lapis lazuli is an opaque mineral, sodium aluminosilicate sulfate with the ideal formula Na[(AlSiO 4)SO 4], having a color from blue to bluish- or greenish-gray, was previously widely known as azure spar.
Originating from the Persian word for the gem, lāžward, [1] lapis lazuli is a rock composed primarily of the minerals lazurite, pyrite and calcite. As early as the 7th millennium BC , lapis lazuli was mined in the Sar-i Sang mines, [ 2 ] in Shortugai , and in other mines in Badakhshan province in modern northeast Afghanistan . [ 3 ]
Lazulite or Azure spar [6]: 14 is a transparent to semi-opaque, blue mineral that is a phosphate of magnesium, iron, and aluminium, with the chemical formula (Mg,Fe 2+)Al 2 (PO 4) 2 (OH) 2. [3] Lazulite forms one endmember of a solid solution series with the darker, iron-rich scorzalite. [3] [5] Lazulite crystallizes in the monoclinic system.
Lazurite, old name Azure spar [7]: 14 is a tectosilicate mineral with sulfate, sulfur and chloride with formula (Na,Ca) 8 [(S,Cl,SO 4,OH) 2 |(Al 6 Si 6 O 24)]. It is a feldspathoid and a member of the sodalite group. Lazurite crystallizes in the isometric system although well‐formed crystals are rare.
The color azure ultimately takes its name from the vivid-blue gemstone lapis lazuli, a metamorphic rock. Lapis is the Latin word for "stone" and lāzulī is the genitive form of the Medieval Latin lāzulum , which is taken from the Arabic لازورد lāzaward [laːzwrd] ( listen ⓘ ), itself from the Persian لاژورد lāžaward , which ...
In addition to vitamin C, they contain vitamin A, B vitamins, minerals and antioxidants. Colorful, sweet and crunchy, they can be sliced and then dipped in hummus or tzatziki for a filling snack ...
Hauyne or haüyne, also called hauynite or haüynite (/ ɑː ˈ w iː n aɪ t / ah-WEE-nyte), [7] old name Azure spar, [8]: 571 is a rare tectosilicate sulfate mineral with endmember formula Na 3 Ca(Si 3 Al 3)O 12 (SO 4). [1] As much as 5 wt % K 2 O may be present, and also H 2 O and Cl. It is a feldspathoid and a member of the sodalite group.