* Minerals are non-renewable resources because the amounts that exist are finite although most are very abundant. * Economically recoverable resources account for a tiny proportion of the total that exists. * The main limitations on mineral availability are the locations‚ chemical form and purity of the deposits‚ and the availability of technologies to exploit them. * Their exploitation is economically important but can cause environmental damage. Factors affecting the viability of
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MATALLIC MENIRALS ROLL NO: 07 Metallic Minerals On an auspicious day‚ sometime around a million years ago‚ a member of the Homo habilis species stood erect and walked steadily on his two feet and his two hands became totally free. A new species – Homo erectus—began its journey on a new evolutionary track. This great change took around four million years after his ancestors – the hominids — broke free from the lineage of apes and chimpanzees. But ‚ perhaps for the next seven to eight hundred
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What are mineral resources? Mineral resources are the natural resources which cannot be renewed. Examples of mineral resources Gold Salt Tin Limestone Iron ore Coal Iron Manganese Rubber Aluminium Marbles They are also used to produce useful things. Some of these useful things are: Soap Jewelleries e.g. chain bracelet e.t.c. Batteries And so on NAMES OF MINERAL RESOURCES‚ WHERE IT IS FOUND AND ITS USES. Limestone: Limestone is a sedimentary
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Minerals Among Us Venture outside on any particular day‚ look down along the traversed path and select a rock‚ any rock‚ call it Exhibit A. Observe it for a moment. How fantastic would it be‚ to positively identify it? To know that by observing certain properties of this rock‚ it can be said with confidence‚ that this particular rock has calcite‚ halite‚ mica‚ quartz or any specific mineral. Well‚ “because the atomic structure of a mineral species is always the same‚ most of its physical properties
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discovered in 1852 by a mineralogist by the name of John P. Calcite. Calcite is a carbonate mineral that is usually white or colorless‚ but can have variety of colors due to impurities. It is one of the world’s most important minerals and is the most common. Calcite is one of the softest minerals and can be found in sedimentary and metamorphic rocks. Calcite has more practical uses than most other minerals. This mineral can be found in limestone and marble which is makes up most of the Earth’s crust. The
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100 Minerals and Mineral Resources The diamond is a rare mineral that is used for many different things in today’s world. Diamonds are composed of carbon know as the chemical symbol C. In a diamond the carbon atoms are covalently bonded to one another. The physical properties of the diamond consist of colors of yellow‚ brown‚ gray‚ white‚ blue‚ black‚ reddish‚ greenish and colorless. The luster is adamantine to waxy. The specific gravity is 3.5‚ which is about the average for a mineral. The
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mining‚ dams and their effects on forests and tribal people b. Water Resources: Use and over-utilisation of surface and ground water‚ floods‚ drought‚ conflicts over water‚ dams – benefits and problems. c. Mineral Resources: Use and exploitation‚ environmental effects of extracting and using mineral resources‚ case studies. 16 20 20 22 22 23 26 30 32 d. Food Resources: World food problems‚ Changes in landuse by agriculture and grazing‚ Effects of modern agriculture‚ Fertilizer/ pesticide problems
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VITAMINS AND MINERALS Vitamins and minerals make people’s bodies work properly. Although you get vitamins and minerals from the foods you eat every day‚ some foods have more vitamins and minerals than others. Vitamins fall into two categories: fat soluble and water soluble. The fat-soluble vitamins — A‚ D‚ E‚ and K — dissolve in fat and can be stored in your body. The water-soluble vitamins — C and the B-complex vitamins (such as vitamins B6‚ B12‚ niacin‚ riboflavin‚ and folate) — need to dissolve
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Vitamins and Minerals What are vitamins? Vitamins are nutrients that everyone needs in small amounts for the body to work properly. Different vitamins have different functions. For example‚ some enzymes need particular vitamins to work. Your body can’t make most vitamins apart from vitamin D‚ so you have to get them from the food you eat. There are two types of vitamins: water-soluble vitamins - these cannot be stored in your body and need to be replaced regularly in your diet fat-soluble
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Axia College Material Appendix C Mineral Identification Worksheet Open the simulation and print this worksheet and the Mineral Identification Job Aid. Then do the following: 1. Conduct all tests on the minerals in the virtual lab. Minerals in the virtual lab are numbered 1–7. Keep track of which mineral you are working with as you record your observations. 2. Record your observations of each test in Part 1 of this worksheet. Help: Refer to the job aids in the upper right
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