Minerals in different seasons

Are minerals changing in different seasons? Do they live as lived annual plant, or more like a perennial conifer? Of course, we want to say: no, minerals the dead, lifeless, and do not change in different seasons. But the answer will be ill-advised, as many minerals are formed and changed in certain times of the year.

Everyone knows one characteristic mineral that appears in certain months of the year

Everyone knows one characteristic mineral that appears in certain months of the year. It disappears in the spring in the vast spaces of the earth, and in the fall it is there again. These minerals are ice and snow. At first glance, it seems a little strange, but sometimes the ice is known as a conventional rock, as limestone, sandstone and clay. On the earth the ice found with sand and other rocks. If we lived in an atmosphere of eternal cold, 20-30 degrees below zero, the ice would have been for us a very ordinary rock that would have formed the rocks and mountains, and its molten state we would have called the water. Water would be a very rare mineral.

But not only the ice and snow can be called temporary minerals. There are many minerals. They are found everywhere in the spring and fall in deserts and polar regions.

An example of how minerals change at different times of the year may be the salt of iron sulphate

An example of how minerals change at different times of the year may be the salt of iron sulphate. In some places, after the disappearance of the spring waters appear beautiful greenish-white blooms: are salts of iron sulphate, which is formed by the oxidation of pyrites spring waters rich in oxygen. These substances are a colorful pattern of beams covered slopes. But the first rain washes them away until next spring.

Even more striking is the picture of flowers in the desert. Their appearance is very fantastic. In some desert after the rain in the night the morning clay surface unexpectedly covered with continuous snow cover salts. They grow in the form of twigs, needles and rustling under my feet... But only lasts until noon. Then rises the hot desert wind and dispels in a few hours salt flowers.

As minerals change at different times of the year can be seen on the salt lakes of Central Asia, especially in the Kara-Bogaz of the Caspian Sea. In winter, there appear millions of tons of Glauber's salt, and as snow, cast ashore, to summer again dissolved in warm water of the gulf.

However, the most remarkable proof that the minerals in different seasons changing, are wonderful formations that occur in the polar regions. In cold saline springs, whose temperature is lowered to 250 below zero, on the walls there are large hexagonal crystals of rare minerals gidrogalit. In the spring, they crumble to powder a simple salt, and in the winter begin to grow again.

Tools