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Rocks & Minerals

Discover the amazing world of rocks and minerals. Learn about their characteristics, formation, and properties. Explore the rock cycle and understand how different types of rocks are formed. From the beautiful crystals to the unique textures, rocks and minerals have a fascinating story to tell.

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Rocks & Minerals

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  1. Rocks & Minerals ROCKS & MINERALS

  2. Naturally occurring made from non-living things (fossils & coal are made from living things that died so are not considered minerals) Not man made Minerals must be:

  3. Solid Have a fixed shape and volume Never living- inorganic Minerals must be:

  4. Have a definite crystal structure particles line up in a regular, repeating pattern. flat sides called faces, that meet at sharp edges and corners. Minerals must have: http://vasichkominerals.com/

  5. A definite chemical composition Always contains certain elements in the same proportion. Almost all minerals are compounds, (two or more different elements chemically joined). Minerals must have: http://www.eas.slu.edu/People/Students/woodhull/uraninite.html

  6. All minerals must: Occur naturally in nature Inorganic solid Crystal structure Definite chemical composition Minerals Review http://nature.ca/museum/press/2006/pr06-02-07_minstucson_e.cfm

  7. Hardness A measure of how easily a mineral can be scratched. Properties of Minerals http://www.info-diamond.co.uk

  8. Color first thing noticed about minerals Properties of Minerals http://www.nmnh.si.edu/rtp/students/2004/virtualposters/poster

  9. Luster The way a mineral reflects light. Can be metallic or non-metallic. Shiny or dull. waxy, pearly, glassy. Properties of Minerals This is a gem stone called tourmaline it has a glassy luster

  10. Streak The color of its powder. Not always the same as the color of the mineral. Properties of Minerals http://geology.csupomona.edu/alert/mineral/streak.htm

  11. Rocks are made of more than one mineral Could have other substances comprising them Rocks blue.utb.edu/.../PHYS1417SPR00/Unit3Lec.html

  12. Rocks Classificationclassified by geologic process that formed them (origin of rocks) http://geology.com/rock-tumbler/tumbling-rough.shtml

  13. How were the rocks formed - magma - erosion and layering - heat and pressure Rock Classification

  14. Igneous rocks are formed from the cooling of magma or lava Lava is magma that reaches the earth’s surface Origin of rocks www.outreach.canterbury.ac.nz/.../igneous.jpg

  15. Sedimentary rocks formed from other rocks that are broken into small particles and moved by erosion (wind or water) particles are squeezed or cemented together Rocks are layered Origin of rocks www.energyinst.org.uk/education/glossary/

  16. Metamorphic rocks formed from other rocks pushed deep into the earth’s crust Pressure and heat cause them to change shape, color, grain and structure Origin of rocks http://www.classzone.com/books/earth_science/terc/content/visualizations/es0607/es0607page01.cfm?chapter_no=visualization

  17. Properties • Texture • Grain • Minerals • Color

  18. Texture is how a rock looks and feels texture in rocks is determined by the size, shape, and pattern of a rocks grains. Texture ocal.wasp.uwa.edu.au/.../rock/rock16.jpeg

  19. Size -- large, small Shape --smooth, rough, round jagged Pattern – rows, waves, swirls, beads or random patterns Grain http://www.union.edu/PUBLIC/GEODEPT/COURSES/geo-10/metamorphic.htm

  20. Rock cycle http://www.classzone.com/books/earth_science/terc/content/investigations/es0602/es0602page02.cfm

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