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TEXTURE OF ROCK..

TEXTURE OF ROCK. THE SIZE, SHAPE AND POSITIONS OF THE PIECES INSIDE A ROCK.. 3 TYPES= FINE GRAINED, COARSE GRAINED AND MEDIUM GRAINED ROCKS ARE MADE OF MINERALS, BUT MINERALS ARE NOT MADE OF ROCKS. FINE GRAINED TEXTURE. WE DON’T EASILY SEE WHAT IS INSIDE THE ROCK..

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TEXTURE OF ROCK..

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  1. TEXTURE OF ROCK.. THE SIZE, SHAPE AND POSITIONS OF THE PIECES INSIDE A ROCK.. 3 TYPES= FINE GRAINED, COARSE GRAINED AND MEDIUM GRAINED ROCKS ARE MADE OF MINERALS, BUT MINERALS ARE NOT MADE OF ROCKS.

  2. FINE GRAINED TEXTURE • WE DON’T EASILY SEE WHAT IS INSIDE THE ROCK.. • COOLS FAST, CRYSTALS DON’T LAST • EXAMPLE=TOMATO SOUP

  3. MEDIUM GRAINED TEXTURE • WE SEE SOME OF THE PIECES INSIDE THE ROCK BUT NOT ALL OF THEM • MEDIUM=CRYSTALS SOME • EXAMPLE=OREO COOKIE

  4. COARSE GRAINED TEXTURE • WE CAN EASILY SEE THE PIECES INSIDE THE ROCK • COOLS SLOW=CRYSTALS SURE CAN GROW • EXAMPLE=A SALAD OR “THE WORKS” PIZZA

  5. A ROCK’S COMPOSITION • THE PERCENTAGE OF THE MINERALS THAT MAKE UP A ROCK.. • EXAMPLE= GRANITE IS MADE UP OF.. • 10% MICA • 55% FELDSPAR • 35% QUARTZ

  6. COME IN SILENTLY AND… • READ OVER TODAY’S SONG VERSES AND CHORUS.. • UNDERLINE ANY MINERAL OR SCIENCE TERMS YOU SEE IN EACH VERSE • UNDERLINE ANY MINERAL OR SCIENCE TERMS YOU SEE IN THE CHORUS… • BE READY TO CHECK WITH MR.L

  7. NEW COPY ORANGE START UP BOX #2 • 1. A NON-SILICATE MINERAL DOES NOT HAVE… • 2. THE REFLECTION OF LIGHT OFF OF A MINERAL’S SURFACE IS… • 3. THE COLOR OF A MINERAL’S POWDER IS… • 4. _____LUSTER IS OFTEN SHINY. • 5. THE RESISTANCE TO BEING SCRATCHED IS_________

  8. ORANGE START-UP BOX#3 • 1. THE PERCENTAGE OF MINERALS INSIDE A ROCK IS…. • 2. _____ARE MADE OF MINERALS, BUT MINERALS ARE NOT MADE OF_____. • 3. THE SIZE AND SHAPE OF THE PIECES INSIDE THE ROCK ARE CALLED____. • THE THREE TYPES OF TEXTURE ARE.4.____GRAINED, MEDIUM-GRAINED AND 5.________GRAINED

  9. ORANGE START UP BOX #4 • 1.GRANITE IS MADE OF 10% MICA, 55% FELDSPAR AND 35% QUARTZ.=…. • 2. A TEXTURE WHERE WE EASILY SEE ALL THAT IS INSIDE IS… • 3. A TEXTURE WHERE WE SEE SOME, BUT NOT ALL INSIDE IS.. • 4. A TEXTURE WHERE WE DON’T SEE EASILY WHAT IS INSIDE IS… • 5. A PEPPERONI PIZZA=_____GRAINED

  10. NEW ORANGE START UP BOX #1 • 1.SILICON + OXYGEN=____MINERAL • 2. NO SILICON AND NO OXYGEN=__MINERAL • 3. EARTH IN CENTER/PTOLEMY= • 4. 2 PLATES SLIDE BY OR SLIP PAST AND EARTHQUAKES FORM=_____PLATE BOUNDARY • 5. WHEN A MINERAL BUBBLES/FIZZES WHEN AN ACID HITS IT IT SHOWS A…

  11. A MINERAL IS… • NATURALLY FORMED-NOT MADE BY YOU OR ME • ROCKS ARE MADE OF MINERALS, MINERALS ARE NOT MADE OF ROCKS.

  12. A MINERAL IS… • INORGANIC OR NON-LIVING

  13. A MINERAL IS… • SOLID, NOT LIQUID OR GAS

  14. A MINERAL HAS… • A REPEATING CRYSTALLINE STRUCTURE…THIS MEANS THE ARRANGEMENT OF ATOMS ON THE INSIDE GIVES THE MINERAL ITS SHAPE • ON THE OUTSIDE • CHECK OUT MR. L’S VISUAL EXAMPLES OF THIS NOW!!!

  15. Identifying Minerals • Each mineral has its own specific properties used to identify it.

  16. Color • The same mineral can come in a variety of colors • Ex. quartz • Impurities & other factors can change mineral appearance • Color is not the best way to identify minerals

  17. Describes how a surface reflects light Ex. shiny/dull Metallic- minerals containing metals are often shiny Nonmetallic Vitreous- glassy, brilliant Silky-fibrous Resinous-plastic Waxy- greasy, oily Pearly- creamy Earthy- rough, dull Luster

  18. Streak • Color of mineral in powder form • Observed by rubbing a mineral against a piece of unglazed porcelain called a streak plate • Streak doesn’t vary like color & is often different than a mineral’s color • More reliable than color

  19. Cleavage and Fracture • Way a mineral breaks apart determined by arrangement of atoms • Cleavage- breaks along flat surfaces • Fracture- mineral breaks in an irregular way

  20. Hardness • Minerals resistance to being scratched • Ranks minerals from softest to hardest • Talc- softest known mineral • Diamond- hardest known mineral

  21. Hardness

  22. Density • Mass in a given space/ mass per unit volume • D= M/V • Density remains same regardless of sample size • Mass determined using balance • Volume determined using water displacement method • Comparisons can be made by hefting • Specific Gravity- ratio of an object’s density to the density of water

  23. Special Properties • Fluorescence- minerals glow under ultraviolet light, ex. fluorite & calcite • Magnetism- ex. Magnetite • Radioactive- ex. contain radium or uranium • Effervescence- mineral fizzes (releases carbon dioxide) when in contact with hydrochloric acid=chemical reaction/double image.. Calcite • Halite=salty taste

  24. Pictures of special properties…

  25. ROCK VOCAB/FOOD COMPARISON LAB WORK • COMPARE THE ROCK TERM WITH THE FOOOD ITEMS ON EACH TRAY. PLEASE DO NOT MOVE THE FOOD ITEMS OFF THE TRAY. • EXPLAIN AND ADD A DRAWING OF HOW THE SPECIFIC FOOD ITEM ON THE TRAY MATCHES WITH THE TERM AND DEFINTION IT IS NEXT TO. • GROUP DISCUSSION IS A PLUS!!!!

  26. FOOD COMPARISON/ROCK VOCAB • 1. ROCK 8.EROSION • 2. IGNEOUS ROCK 9.WEATHERING • 3.EXTRUSIVE IGNEOUS10.DEPOSITION • 4. INTRUSIVE IGNEOUS11.SEDIMENT • 5. SEDIMENTARY ROCK12.METAMPORPHIC • 6. CEMENTATION 13. FOLIATED META • 7. COMPACTION 14. NON-FOLIATED META • 15. COMPOSITION 16. TEXTURE • 17.FINE GRAINED TEXTURE • 18.COARSE GRAINED TEXTURE • 19. THE ROCK CYCLE

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