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noun
a white, crystalline, water-insoluble, tasteless powder, CaCO3, occurring in nature in various forms, as calcite, chalk, and limestone: used chiefly in dentifrices and polishes and in the manufacture of lime and cement.
QUIZ
SHALL WE PLAY A "SHALL" VS. "SHOULD" CHALLENGE?
Should you take this quiz on āshallā versus āshouldā? It should prove to be a quick challenge!
Question 1 of 6
Which form is commonly used with other verbs to express intention?
Another crucial question is how the particles will react with other chemicals in the stratosphereāparticularly the calcium carbonate, since it doesnāt occur up there naturally.
If and when they starting testing this for real, they should be able to measure more precisely how specks of calcium carbonate or sulfuric acid spread out or clump togetherāa crucial test of how well these materials might work for geoengineering.
There, the package would release 100 grams to 2 kilograms of calcium carbonate, a common mineral dust, to cover an area about 1 kilometer long by 100 meters in diameter.
Over time, these processes should form a mix of loosely bound rock and dirt, mainly composed of magnesium carbonates, bicarbonate, and calcium carbonate, that could simply be left in place, Aines says.
A white or colorless crystalline compound occurring naturally in chalk, limestone, and marble and in the minerals calcite and aragonite. It is used to make toothpaste, white paint, and cleaning powder. Chemical formula: CaCO3.