Transcript Rock texture and composition and review mineral info

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
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WE DON’T EASILY SEE WHAT IS
INSIDE THE ROCK..
COOLS FAST, CRYSTALS DON’T LAST
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EXAMPLE=TOMATO SOUP
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MEDIUM GRAINED TEXTURE
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WE SEE SOME OF THE PIECES INSIDE
THE ROCK BUT NOT ALL OF THEM
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MEDIUM=CRYSTALS SOME
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EXAMPLE=OREO COOKIE
COARSE GRAINED TEXTURE
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WE CAN EASILY SEE THE PIECES
INSIDE THE ROCK
COOLS SLOW=CRYSTALS SURE CAN
GROW
EXAMPLE=A SALAD OR “THE WORKS”
PIZZA
A ROCK’S COMPOSITION
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THE PERCENTAGE OF THE MINERALS
THAT MAKE UP A ROCK..
EXAMPLE= GRANITE IS MADE UP OF..
10% MICA
55% FELDSPAR
35% QUARTZ
COME IN SILENTLY AND…
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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
NEW COPY ORANGE START
UP BOX #2
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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_________
ORANGE START-UP BOX#3
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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, MEDIUMGRAINED AND 5.________GRAINED
ORANGE START UP BOX #4
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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
NEW ORANGE START UP BOX
#1
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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…
A MINERAL IS…
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NATURALLY FORMED-NOT MADE BY
YOU OR ME
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ROCKS ARE MADE OF MINERALS,
MINERALS ARE NOT MADE OF ROCKS.
A MINERAL IS…
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INORGANIC OR NON-LIVING
A MINERAL IS…
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SOLID, NOT LIQUID OR GAS
A MINERAL HAS…
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A REPEATING CRYSTALLINE
STRUCTURE…THIS MEANS THE
ARRANGEMENT OF ATOMS ON THE
INSIDE GIVES THE MINERAL ITS SHAPE
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ON THE OUTSIDE
CHECK OUT MR. L’S VISUAL
EXAMPLES OF THIS NOW!!!
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Identifying Minerals
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Each mineral has its own specific properties used to
identify it.
Color
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The same mineral can
come in a variety of
colors
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Ex. quartz
Impurities & other
factors can change
mineral appearance
Color is not the best
way to identify
minerals
Luster
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Describes how a
surface reflects light
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Nonmetallic
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Ex. shiny/dull
Metallic- minerals
containing metals are
often shiny
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Vitreous- glassy,
brilliant
Silky-fibrous
Resinous-plastic
Waxy- greasy, oily
Pearly- creamy
Earthy- rough, dull
Streak
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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
Cleavage and Fracture
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Way a mineral breaks
apart determined by
arrangement of atoms
Cleavage- breaks along
flat surfaces
Fracture- mineral
breaks in an irregular
way
Hardness
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Minerals resistance to being scratched
Ranks minerals from softest to hardest
Talc- softest known mineral
Diamond- hardest known mineral
Hardness
Density
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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
Special Properties
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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
Pictures of special properties…
ROCK VOCAB/FOOD
COMPARISON LAB WORK
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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!!!!
FOOD COMPARISON/ROCK
VOCAB
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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