PPT-Properties of Minerals

What are properties you already know Densitymassvolume gcm 3 Hardness scratch test Magnetism Color and Luster Color refers to what color it appears when looking at it Minerals can be the same composition but have different apparent colors. So what is a mineral?. What are the characteristics of all minerals?. Mineral . Characteristics. 1. A mineral occurs naturally.. 2. A mineral is solid.. 3. A mineral has a definite chemical composition.. These notes go on pages 5 and 7 of your INB!. http://www.mii.org/www.mii.org. General Facts about Minerals. Between 2 - 3,000 have been identified. A few are . “native elements” . -- made of only one element, such as sulfur, gold. copper, and graphite (carbon). naturally occurring, . inorganic solid . with a specific chemical composition . a definite crystalline structure. Minerals can form from the cooling of magma which is the molten material found beneath Earth’s surface as magma rises closer to the surface the molten compounds no longer move freely and they begin to interact chemically to form minerals. If you closed your eyes and tasted different foods, you could probably determine what the foods are by noting properties such as saltiness or sweetness. . You can also determine the identity of a mineral by noting different properties.. 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.. What are minerals?. Common rock-forming minerals. Physical properties of minerals. Basic rock types. The rock cycle. Minerals . Natural . Solid. Atoms arranged in orderly repeating 3D array: . crystalline. naturally. existing . chemical compounds.. 2)Minerals can be identified by their . physical properties. .. 3)What are the four characteristics of a mineral?. Naturally occurring. Crystal Structure/Chemical 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? Rock thin sections. Rock thin sections are slices of rock glued onto microscope slides and polished until they are about 30μm thick (about the thickness of human hair).. The microscope used to study minerals in rock thin sections.. Appearance of a fresh mineral surface in reflected light. 1. Metallic Luster. 2. Vitreous Luster- glassy luster. 3. Resinous Luster. 4. Pearly Luster. 5. Silky luster. Pyrite. Quartz. Orpiment. Muscovite. What do good scientists do?. GOOD SCIENTISTS…. work together and share their information.. observe carefully.. record their observations.. learn from their observations and continue to test, examine, and discuss.. 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 .