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Lazurite and hauyne seem to have the same structure and both are sulfate-dominant minerals. [14] 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.
Azure spar, sometimes azur-spar (German: Lazur spath, Blau spath) is a trivial and commercial, partly obsolete name for several of the most famous bright blue or blue-colored minerals, which also have similar names, most notably for lazurite and azurite, [1]: 14 and also for the less commonly used lazulite.
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]
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 ...
Elon Musk and other conservative online personalities are riffing on an idea about the X owner buying media outlet MSNBC. Donald Trump Jr. tagged Musk in a quoted post Friday hinting at a ...
Texas and Texas A&M will meet in football for the first time in 13 years and the heated rivalry hasn't cooled off in its dormancy and has high stakes.
WASHINGTON (Reuters) -The Trump transition team is considering a former Uber executive and three current or former Republican congressmen - one of whom is now a Fox News host - to lead the U.S ...
Lapis lazuli is a type of rock composed of an aggregate of crystals of many minerals including lazurite, pyrite, phlogopite, calcite, potassium feldspar, wollastonite and some sodalite group minerals. [5]