PPT-Minerals

Physical Properties talc talc Color white sea green or gray Luster pearly Hardness 1 Streak white to pale gray Cleavage yes Fracture uneven Uses paint baby powder paper rubber cosmetics . A homogenous, naturally occurring substance with definable internal structure is called mineral. .. Mode of occurrence of minerals:. (1) In igneous and metamorphic rocks: The smaller occurrences are called veins and the larger occurrences are called lodes. They are usually formed when minerals in liquid/molten and gaseous forms are forced upwards through cavities towards the earth’s surface. Examples: tin, copper, zinc, lead, etc.. 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.. In . the mineral graphite, the carbon atoms are arranged in sheets where the atoms are joined together in a hexagonal pattern and held together by the strongest of all chemical bonds, the covalent bond. The sheets are then stacked and held . Liz Rampe (NASA-JSC/ORAU). 9 July 2012. elizabeth.b.rampe@nasa.gov. Why Study Minerals on Mars?. Link to past and present geologic processes. Understand how geologic processes changed over time. Rock forming processes. 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, . June 12, 2014. Agenda. What . is Conflict . Minerals?. How does a company ensure Conflict Minerals Compliance?. What is the impact CM Supply . Chain & . Suppliers?. Q . & A. 2. What is Conflict Minerals? . Vitamins and Minerals. Sodium:. Functions. Fluid and electrolyte balance. .. Associated with blood pressure and pH balance . in the body.. Required for nerve impulse transmission. .. Assists in the transport of certain nutrients . Presented to . the Central Texas Electronics Association. Brad Heath. CEO, VirTex Assembly Services. Why Should I Care?. Conflict Background. Origins of the Conflict are rooted in the 30 years of Mobutu rule and instability since DRC’s independence from Belgium.. GLY 4310 . Spring, 2016. 2. Crustal Chemistry. The earth’s crust is composed of three common elements, on an atom percent basis. Oxygen, 62.5%. Silicon, 21.2%. Aluminum, 6.47%. Silicates are the most common minerals on the planet. GLY 4310 . Spring, 2017. 2. Crustal Chemistry. The earth’s crust is composed of three common elements, on an atom percent basis. Oxygen, 62.5%. Silicon, 21.2%. Aluminum, 6.47%. Silicates are the most common minerals on the planet. the . Automotive Industry. COMMIT. ! Forum. T. Bolden. October 19, 2016 . . Globally recognized trade association founded in 1982. Unique open/neutral forum to collaborate on industry issues. OEM’s, Suppliers of all sizes, Service Providers, Government & Academia. 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. …the same type of mineral! They are examples of quartz!!. Haha! Tricked you! These are all…. There are over 3000 types of minerals in the Earth’s crust. As you could see with the quartz, often times even the . 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:.