When identifying a mineral, this is the test that measures how easily a mineral can be scratched, measure on a scale from 1 to 10. - PowerPoint PPT Presentation

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When identifying a mineral, this is the test that measures how easily a mineral can be scratched, measure on a scale from 1 to 10.

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When identifying a mineral, this is the test that measures how easily a mineral ... BRECCIA, SANDSTONE, SILTSTONE, SHALE. Halite is a sedimentary rock formed from ... – PowerPoint PPT presentation

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Title: When identifying a mineral, this is the test that measures how easily a mineral can be scratched, measure on a scale from 1 to 10.


1
When identifying a mineral, this is the test that
measures how easily a mineral can be scratched,
measure on a scale from 1 to 10.
  • hardness

2
When identifying a mineral, this is the test that
measures how a mineral reflects light such as
metallic, pearl, or dull.
  • luster

3
When identifying a mineral, this is the test that
measures a minerals mass compared to the same
volume of water.
  • Specific gravity

4
When identifying a mineral, this is the test that
shows the color of a minerals powder.
  • Streak test

5
When identifying a mineral, this is test showing
how a mineral breaks
  • Cleavage, fracture

6
What are the three basic types of rocks?
  • Igneous, metamorphic and sedimentary

7
What are the two types of igneous rocks?
  • Extrusive rocks
  • Intrusive rocks

8
List characteristics of intrusive rocks.
  • Made INSIDE the earth
  • Made of magma
  • Cool slowly
  • Made of large crystals

Granite, Gabbro
Example
9
List characteristics of extrusive rocks.
  • Made on surface of Earth
  • Made of lava
  • Cools quickly
  • Rocks have NO or very tiny crystals

Example
Pumice, basalt, obsidian, scoria
10
Igneous rocks that are dark in color, made mostly
of iron and magnesium are called
  • BALSALTIC

11
Igneous rocks that are mostly light colored,
containing lots of silica are
  • GRANITIC

12
What are the two types of metamorphic rocks?
  • Foliated
  • Nonfoliated

Characteristics examples
Banded or striped -gneiss, slate
Not banded or striped, larger crystals
quartzite, marble
13
What is necessary to make metamorphic rocks?
  • Extreme heat, pressure or hot liquids.

14
What is necessary to make sedimentary rocks?
  • Weathering (breaking up of rocks)
  • then, erosion followed with
  • Compaction or cementation of sediment

15
What are some examples of sedimentary rocks?
  • Sandstone
  • Shale
  • Conglomerate
  • Limestone
  • Coal

16
What model illustrates the process to create and
change rocks?
  • Rock Cycle

17
  • What is the most common rock seen (75 of them)?
  • What is the breaking down of rock called?
  • What is the carrying away of sediment by natural
    forces?
  • Sedimentary rocks
  • Weathering (done by wind, water, ice and gravity)
  • erosion

18
What two steps should occur for any rock to turn
into sedimentary rock?
  • Weathering (breaking down of old rock)
  • Compaction or cementation (pressing or glue rock
    fragment together)

19
What type of sedimentary rock is made of pieces
or other rocks or shells?
  • DETRITAL
  • EXAMPLES?
  • BRECCIA, SANDSTONE, SILTSTONE, SHALE

20
Halite is a sedimentary rock formed from
  • Dissolved minerals water evaporates leaving
    behind the halite (rock salt)
  • How is this rock classified?
  • A chemical sedimentary rock

21
What type of rock or rocks are made from once
living organisms that are cemented or compacted
together?
  • ORGANIC SEDIMENTARY
  • EXAMPLES? (name 3)
  • LIMESTONE (tiny seashells)
  • COQUINA (bigger pieces of seashells,
  • CHALK, (microscopic seashells)
  • COAL (plants die and chemically change)

22
List 2 comparisons for igneous rocks.
  • Made from molten material
  • Near a volcano
  • Must cool to become a rock

23
Give at least 2 comparisons for metamorphic rocks
  • They are put under great pressure or heat
  • They are very dense rocks

24
Give at least 2 comparisons for sedimentary rocks
  • All are made of bits of rock, plants, animals
  • Undergo weathering erosion to break down
  • Pieces undergo compaction and cementation to put
    pieces together to make a rock

25
List a foliate metamorphic rock
  • Slate
  • Gneiss

26
List a nonfolliated metamorphic rock
  • Quartzite
  • Marble

27
Name 3 igneous extrusive rocks
  • Pumice
  • Scoria
  • Basalt
  • Obsidian
  • Geode

28
Name 2 intrusive igneous rocks
  • Granite
  • Diorite

29
What 2 processes does it take to turn rocks into
igneous rock?
  • 1. melting
  • 2. cooling

30
What 3 processes will turn rock into metamorphic
rocks?
  • 1. Extreme pressure
  • 2. heat
  • 3. hot liquids

31
What 2 processes does it take to turn rock into
sediment?
  • Weathering
  • Erosion

32
What 2 processes does it take to turn sediment
into sedimentary rock?
  • Compaction
  • cementation
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