PPT-Physical Properties of Minerals

Cleavage Fracture Color Streak Luster Hardness Heft Cleavage mineral breaks evenly along a smooth flat surface the cleavage plane Cleavage Minerals can have 1 2 3 4 or 6 cleavage directions. 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.. 21. Physical Properties. Chemical Properties. Physical Change. Chemical Change. Chemical and Physical Changes Brain pop. Physical Properties. can be observed or measured without changing the substance.. 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. Chapter 5. Minerals of Earth’s Crust. Chapter. 5. Standards. SES2d. Associate specific plate . tectonic . settings . with the production of particular groups of igneous and metamorphic rocks and mineral resources. Mineral Characteristics. What is a mineral?. Naturally . occuring. Not . man-made. (synthetic) or biologically produced. . Pearls, . styrofoam. , charcoal are not minerals. Inorganic. Not formed from processes involving organisms (living or once living). 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. 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.. What are the physical characteristics used to distinguish between minerals & rocks?. SWBAT: Explain how scientists use physical characteristics to identify and classify minerals and rocks.. What is a mineral?. Understand how mineral crystals acquire their shape. Understand the characteristics that define a sample as a mineral. Understand that many minerals are composed of similar elements. Understand the connections between minerals and rocks and that many rocks contain similar minerals. Background Information!. The Earth’s crust is made of mostly rocks and soil.. The rocks are made of different combinations of . minerals.. Minerals . are made of . elements. . (. Remember an element . 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 .