PPT-Mineral Properties Key Concepts

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. 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.. 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.. GLY 4200 - Lecture 2 –Fall, 2016. 2. Hardness . Hardness may be measured in several ways. Moh’s scale – developed by Austrian mineralogist Friedrich Mohs in 1824. Absolute scales – Brinell, Knoop, Rockwell, Vicker’s. 2. Hardness . Hardness may be measured in several ways. Moh’s scale – developed by Austrian mineralogist Friedrich Mohs in 1824. Absolute scales – Brinell, Knoop, Rockwell, Vicker’s. 3. Moh’s Scale. 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. 1) Rocks cannot be made of organic material. 2) Luster is classified as metallic and non-metallic. 3) Scientist use tests to identify minerals. 4) Minerals that make up rocks can be mined as ores. 5) A liquid or gas can be classified as a mineral. 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.. Standard: S6E5b. Investigate the contribution of minerals to rock composition.. There are five characteristics of a mineral. F. ive characteristics. . of a mineral:. Solid—A mineral is always a solid, with a definite volume and shape.. 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? 1 Mineral Properties GLY 4200 - Lecture 2 –Fall, 2019 © D. L. Warburton 2019 2 Hardness Hardness may be measured in several ways Moh’s scale – developed by Austrian mineralogist Friedrich Mohs in 1824 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. 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 .