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Haüyne or prismatic azure spar is a transparent or translucent mineral, similar to lazurite, in composition sodium and calcium aluminosilicate with the ideal formula (Na,Ca) 4-8 Al 6 Si 6 (O,S) 24 (SO 4,Cl) 1-2 having a blue or blue color, sometimes with a greenish tint, [5] was also known among the azure spars.
Lazurite is a product of contact metamorphism of limestone and is typically associated with calcite, pyrite, diopside, humite, forsterite, hauyne and muscovite. [ 2 ] Other blue minerals, such as the carbonate mineral, azurite , and the phosphate mineral, lazulite , may be confused with lazurite, but are easily distinguished with careful ...
The Lazurit Central Design Bureau (Russian: Центральное конструкторское бюро "Лазурит") is a company based in Nizhny Novgorod, Russia.
lazurite Na 3 Ca(Si 3 Al 3)O 12 S; tsaregorodtsevite N(CH 3) 4 Si 4 (SiAl)O 12; tugtupite Na 4 BeAlSi 4 O 12 Cl; vladimirivanovite Na Na 6 Ca 2 [Al 6 Si 6 O 24](SO 4,S 3,S 2,Cl) 2 ·H 2 O; All these minerals are feldspathoids. Haüyne forms a solid solution with nosean and with sodalite. Complete solid solution exists between synthetic nosean ...
The major component of lazurite is a complex sulfur-containing sodium-silicate (Na 8–10 Al 6 Si 6 O 24 S 2–4), which makes ultramarine the most complex of all mineral pigments. [10] Some chloride is often present in the crystal lattice as well. The blue color of the pigment is due to the S − 3 radical anion, which contains an unpaired ...
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]
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]
Rubin Central Design Bureau for Marine Engineering (Russian: Центральное конструкторское бюро "Рубин", romanized: Tsentralnoye konstruktorskoye byuro "Rubin"), abbreviated as TsKB "Rubin" (Russian: ЦКБ "Рубин"), located in Saint Petersburg, is the largest of Russia's three main centers of submarine design, the other two being Malakhit Marine ...