A mineral is a naturally occurring, inorganic solid that has a definite chemical composition and crystal structure. In order for a substance to be called a mineral, it must have all of these five characteristics, and must be completely inorganic meaning not formed from living things or their remains (Marshak 123). A mineral may be made of a single pure substance, or element, such as gold, copper or sulfur, but most are made of two or more elements chemically combined to form a compound (Marshak 122). Minerals can be found everywhere, because all rocks have some form of mineral contained in them. It is very useful to know how to identify minerals when looking at different rock types because they are the basic building blocks of many of the everyday materials we use. Minerals have certain physical properties that can be used for identification, such as color, luster, streak, hardness and breakage, crystal shape, and other special properties.
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The color and luster of a mineral are the most easily seen physical properties but they may be deceiving. Color can be used to identify only those few minerals that always have their own characteristic color, but most minerals vary greatly in their color. For example Quartz can range in color from clear, white, purple (amethyst), and grey. According to Stephen Marshak, Professor of Geology and Director of School of Earth, Society, and Environment at the University of Illinois at Urbana-Champain, "Color variations in a mineral reflect the presence of tiny amounts of impurities. For example, a trace of iron may produce a reddish or purple tint, and manganese may produce a pinkish tint". The luster of a mineral describes the way a mineral reflects light from its surface. Certain minerals have a metallic luster, such as Graphite, Galena, and Magnetite. Those that do not reflect light have a nonmetallic luster, and are described by terms like earthy, glassy, pearly, dull and waxy (Ludman 53).
Although were you live and how you eat play a major part in your dietary habits, food choices vary from person to person. What people eat affects their health and how they live. ... The number of calories needed each day depends on how much energy your body uses. ... Nutritionists classify different types of dietary fats, or fats in food. ... Minerals are neither animal or vegetable; they are inorganic. ...
How would you classify the bones fractured by Mrs. ... How is the sign or symptom related to these anatomical structures? ... Identify which bone cell is responsible for this process and explain how it occurs. - This process is called ossification, and is done with osteoblasts. ... Mineralization which leads to finalized bone tissue takes place within a period of day to weeks. ...
Louis with information such as; maps of their route and the surrounding regions; specimens and descriptions of plant, animal, and mineral resources; and information about the native Indians of the west. ... There he obtained the knowledge on how to classify plants and animals and how to determine geographical positions by following the stars. ... Louis on the keelboat, with animal, plant and mineral specimens; maps; and reports for President Jefferson. ...
Acids In everyday life we deal with many compounds that chemists classify as acids. ... These acids are called mineral acids because they can be prepared from naturally occurring compounds called minerals. Mineral acids are generally stronger than household acids, and should be handled with great care because they can burn skin and clothing. ... How Acids are Prepared: Acids may be prepared when certain gases, related to acids, are dissolved in water and when certain salt compounds, again related to acids, are allowed to react with sulfuric acid. ... How does this happen? ...
Understanding the buyer behavior of organic food consumers and behavioral segmentation of potential buyers NAME: Institute: Jamnalal Bajaj Institute of Management Studies (JBIMS) Mumbai Specialization: Marketing Understanding the buyer behavior of organic food consumers and behavioral segmentation of potential buyers Executive summary 1.0 Definition of organic foods Organic foods are minimally processed to maintain the integrity of the foods without artificial ingredients, preservatives or irradiation 2.0 Analysis of buyer behavior Analysis of buyer beh...
In contrast to the mineral, plant and animal kingdoms, it is and will continue to be, a renewable resource. ... This involves consideration of supply (how much water is available) and demand. ... Water in Australia (Ingle Smith, 1998) attempts to solve questions such as Who uses what', where and how much?' ... The 1987 survey together with Ingle Smith's (1998) research, classifies water into four major categories. ... Many of the reasons for, and solutions to, Australian or world crises in water are dominated by the role of irrigation water and these figures demonstrate simp...
A person will begin not only to lose weight but to receive complements on how good they look. ... Some of the dangers include; electrolyte imbalance-which is when the body's fluid and mineral balance is upset-dehydration, damage to bowls, kidney, and liver, and in many cases heart attack or failure. ... At this point a majority of the doctors say that an obese person does have disordered eating, although they will not classify it as an official eating disorder. ...
When classifying organisms, scientists study a wide range of features, including those visible to the naked eye, those detectable only under a microscope, and those that can be determined only by chemical tests. ... Scientists use the fossil record to learn how certain animals have changed and evolved through Earth's history, which may provide clues for classification. ... They are among the leading decomposers of organic matter; breaking down plant and animal remains and wastes into their chemical states, as well as having a critical role in the recycling of minerals and carbo...
Introduction Plants used as medical treatments for is a practice that transcends since the beginning of time. Ancient civilizations, such as the first with written records, indicate their use of plants and herbs for their healing properties. Indian and African cultures are widely known for their us...
