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A calcium–aluminium-rich inclusion or Ca–Al-rich inclusion (CAI) is a submillimeter- to centimeter-sized light-colored calcium- and aluminium-rich inclusion found in carbonaceous chondrite meteorites. The four CAIs that have been dated using the Pb-Pb chronometer yield a weighted mean age of 4567.30 ± 0.16 Myr.
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The following inclusion types can also be found in aluminium alloys: alumina needles (Al 2 O 3), nitrides (AlN), iron oxides (FeO), manganese oxides (MnO), fluorides (Na 3 AlF 6, NaF, CaF 2, …), aluminium borides (AlB 2, AlB 12), borocarbides (Al 4 C 4 B). Bone ash (Ca 3 (PO 4) 2) sometimes added to patch cracks in the trough can be found as ...
Krotite was reported in 2011 [3] in a calcium-aluminium-rich inclusion (CAI) in the carbonaceous chondrite meteorite NWA (North West Africa) 1934, which landed in Morocco. [4] The mineral name was approved by the International Mineralogical Association (IMA 2010-038) [ 5 ] and honors Alexander N. Krot, a researcher in cosmochemistry at the ...
First-round players to watch, keys to the game. For the first time ever, there will be College Football Playoff games on campuses. Notre Dame-Indiana will get things started on Friday night before ...
Al Jazeera Media Network is launching a streaming platform called Al Jazeera 360 that the Qatar-based news network is hailing as a digital milestone and a gateway for the public to watch its news ...
The hundreds of television series on U.S. broadcast, cable and streaming platforms, and the executive producers creating them, are the subject of a new list — one that scores them for the ...
3CaO·Al 2 O 3 ·Ca(O,Cl 2) · 11 H 2 O. A simplified chemical composition with only Cl – in the interlayer, and without OH –, as: Ca 2 Al(OH) 6 (Cl) · 2 H 2 O. can be also written in cement chemist notation as: [1] 3CaO·Al 2 O 3 ·CaCl 2 · 10 H 2 O. Friedel's salt is formed in cements initially rich in tri-calcium aluminate (C 3 A ...