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Updated: June 28, 2025
Magnesium is an element, and is found in magnesium carbonate, a compound that is effective in correcting soil acidity. Magnesian Limestone. Magnesium carbonate is usually found in combination with calcium carbonate, and when about 47 per cent of the total carbonates is magnesium carbonate, the limestone is known as dolomite. Ground Limestone is the stone pulverized so that it can be distributed.
The ancient Sikyatki people were accustomed to deposit in their mortuary vessels fragments of minerals or ground oxides and carbonates, of different colors, used as paints.
Now vessels of glass, of porcelain, and of all non-metallic substances, are destroyed by the means we employ for that purpose, are acted upon by many acids, by alkalies and the alkaline carbonates. Crucibles of gold and silver would melt at high temperatures. But we have a combination of all the qualities we can desire in Platinum.
As races and individual minds must always differ just as sulphates and carbonates do, I cannot see ground for expecting the Broad Church to be founded on any fusion of intellectual beliefs, which of course implies that those who hold the larger number of doctrines as essential shall come down to those who hold the smaller number.
The following figures were made in order to show the details of anatomical structure that are still visible in coal, and to permit of estimating the shrinkage that the organic substance has undergone in becoming converted into coal. It is not rare in coal mines to find fragments of wood, of which a portion has been preserved by carbonates of iron and lime, and another portion converted into coal.
I compared it with similar minute portions of the pure carbonates of potash, and similar minute portions of the pure carbonates of potash and soda. It was not so deliquescent as the former of these bodies, and it formed a salt with nitric acid, which, like nitrate of soda, soon attracted moisture from a damp atmosphere and became fluid.
Now, neutral tartrates, citrates, and acetates of the alkalis are found, in their passage through the system, to be changed into carbonates; and to convert a tartrate into a carbonate requires an additional quantity of oxygen, the abstraction of which must lessen the oxygen destined for assimilation with the blood, on the quantity of which the vigorous action of the human system partly depends.
The immediate effect of this is that a proportion of the carbonic acid of the latter combines with the invisible lime of the clear lime water, forming a chalky precipitate, while the loss of this proportion of carbonic acid also reduces the invisible bicarbonates into visible carbonates.
Now, when the sun-waves come to take the water out of the sea again, they will have nothing but the pure water itself; and so all these salts and carbonates and other solid substances are left behind, and we taste them in sea-water. Some day, when you are at the seaside, take some extra water and set it on the hob till a great deal has simmered gently away, and the liquid is very thick.
"This is evidence to me that these remains have been here a long time." "Why; because it is in the form of a ball, and not a bullet?" "Yes; and there is also another reason why these people came here and met their fate many, many years ago." "What is that?" "In this calcareous formation the preservative qualities of the carbonates would prevent rapid decomposition.
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