PPT-Special Properties of Minerals

Magnetism Feel Taste Smell Optical Properties Magnetism Lodestone natural compass Magnetite Feel Graphite feels greasy Talc feels soapy Taste Halite is rock salt so it tastes salty. Geologists use characteristics to tell one mineral from another. What is a Mineral?. Must be a solid.. Must occur in nature.. Must have a definable chemical composition (. NaCl. ).. Must have a crystalline structure.. UNIT -4. They assist in the identification of minerals – . study their optical properties under the microscope. . . Minerals . are inorganic chemical compounds having a certain lattice shape, size and symmetry, being a result of the geometrical arrangement of the constituents (chemical elements such as Si, Al, O, . Bellwork. 9-13-16. Get out the video notes to check.. Objectives. Students will be able to identify how the earth is affected by long- term and short- term geological cycles and the influence of man.. How to identify a mineral…. Questions for review…. Which of the following definitions best describes a MINERAL?. a. a substance that cannot be separated or broken down into simpler substances by chemical reactions. All rocks are made up of 2 or more of these minerals. . Minerals are not rocks!. Silicon and oxygen are the most abundant elements in the crust and in minerals. Oxygen is the most abundant element in minerals. A pure substance, such as a mineral, can be identified from observations and tests performed to determine its physical properties. These properties are based on the unique structure of the substance.. A pure substance, such as a mineral, can be identified from observations and tests performed to determine its physical properties. These properties are based on the unique structure of the substance.. Bell Work 9/2/14 1 What element is Group 1 and Period 4? Potassium 2. What is that element ’ s atomic number? 19 3. How many electrons does it have? 19 4. What is its atomic mass? 39.098 5. How many neutrons does it have? A. Definition – four part definition. . . Naturally occurring. . . Inorganic substance (non-living). . . Crystalline solid. . . Definite chemical composition.  .  .  . There are substances that meet 3 of the 4 criteria, and are called . What is a Mineral?. Must be a solid.. Must occur in nature.. Must have a definable chemical composition (. NaCl. ).. Must have a crystalline structure.. Must be inorganic.. Video: . http://www.youtube.com/watch?v=rTXSwnkieZc. excludes synthetic minerals. inorganic. non living processes form them. chemically specific. has a unique proportion of elements. crystalline solid. atoms are arranged in specific 3-D patterns. Definition:. Potassium. 2. What is that element. ’. s atomic number?. 19. 3. How many electrons does it have?. 19. 4. What is its atomic mass? . 39.098. 5. How many neutrons does it have?. 39 – 19 = 20. On your desk . Geo 281: geology for engineers. Geology and Geophysics Department. King Saud University. Minerals: Building. Blocks of Rocks. We begin our discussion of Earth . materials with . an overview of . mineralogy (mineral = mineral and Logy=Study) because . NATURE . SUNDAY ACADEMY. ALL SITE ACTIVITY. 2013-2014. SA Schedule. 11:00 . – . 11:15 am. . Cultural Connection. 11:15 . – . 11:30 am Introduction Video Ground Rules Film. . 12:00 .