What Is Sand And The Types Of Sand
Heavy rocks that are open to the gust of wind, rain and snow. therefore he could experience the process of destruction into small particles. when the particles that have become the particles are very small (i.e. ranging between one-fifth and one - tenth inch hundred in his middle line size), then the particle called a "sand".
because the sand is derived from the rocks comprising details of very fine mineral material, then of course there are also the ingredients of minerals at grain of sand it.
the main minerals that we find in the sand is quartz, because in addition to its quartz is very hard, as well as the amount is very large. some types of sand containing up to 99 percent pure quartz. other minerals are sometimes found in the sand is feldspar, Calcite, mica, iron and small amounts of garnet gemstones, tourmaline and topaz.
the sand is found in rocks that are in a state of closer against the weather. one of the major constituent of sand is the sea coast, there are activities like the tide that hit the rocks. gust of sand by wind blowing against the rocks that give rise to a process of scrape, as well as the melting of mineral substances in some rocks by the sea water, is a unity motion that forms sand it.
of fine sand in the form of grain-grain off along the beach then before the wind and were flown inland. sometimes such a large number of sand flaying with the way it is, so the whole path of the forest could be buried by sand dunes.
how does with the sand that we often find in the desert? most of the sand has been taken off flying into the desert by the wind, some among the desert sand that came from rocks that have undergone a process of destruction.
in the desert sand, the other may have come from the former seabed has become dry, because the water had vanished thousands of years ago and the sand is leaving.
What Is Sand?
the sand is very useful for humans, most people use it for the purpose of building materials of modern buildings, when sand was mixed with cement and water, it will form an adhesive material that tends to be the mud that we call with a "slurry".this material can be quickly transformed into solid material, which we call " the wall". sand is also used to make glass, sand paper, and as a tool to retain water so that the filter remains pure and clean.
