seidozerite
(mineralogy) A monoclinic-prismatic mineral containing aluminum, calcium, fluorine, iron, magnesium, manganese, oxygen, silicon, sodium, titanium, and zirconium.
Einstein refrigerator
Resembling rubble. / Strewn with rubble.
the mathematical concept of matching the sequence of counting words with objects where each object is allocated a number in turn, with the final number word corresponding to the total.
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