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MINERALS: Building Blocks of the Planet

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... Slide 3 Slide 4 Slide 5 TRUE or FALSE Slide 7 Slide 8 OLIVINE IS A DARK COLORED AND RELATIVELY DENSE MINERAL. THIS IS BECAUSE IT IS A: ... – PowerPoint PPT presentation

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Title: MINERALS: Building Blocks of the Planet


1
EARTH STUDIES Geosciences 1000
MINERALS Building Blocks of the Planet Chapter
2 Silicate Structures
2
ACCORDING TO MOHS HARDNESS SCALE, ORTHOCLASE HAS
A HARDNESS OF
  1. 8
  2. 5
  3. 6
  4. 3

3
82.4
4
  • Very Common
  • 95 of All Minerals
  • Silicon (Si) and Oxygen (O) bond Easily

SILICATES Minerals Containing Silicon and Oxygen
O
Si
SINGLE SILICA TETRAHEDRON
SiO4
5
Sizes and Charges of the Sixteen Most Common
Elements
Ions of Similar Charge Size Can Easily
Substitute for Each Other
6
TRUE or FALSE
  • OXYGEN (O) CAN EASILY SUBSTITUTE FOR
  • SODIUM (Na)

7
ROCK FORMING SILICATES
FERROMAGNESIANS (Dark Silicates) Olivine Augi
te (Pyroxene) Hornblende (Amphibole) Biotite
(Mica)
NON-FERROMAGNESIANS (Light
Silicates) Plagioclase (Feldspar) Orthoclase
(Feldspar) Muscovite (Mica) Quartz (Only SiO2)
Feldspars are the most common Silicate in the
Earths Crust - approximately 60
Common Mineral Characteristics
  • Dark Colored
  • Contain Significant
  • Iron (Fe) and
  • Magnesium (Mg)
  • - High Specific Gravity
  • Light Colored
  • Contain Minor to No
  • Iron (Fe) and
  • Magnesium (Mg)
  • - Low Specific Gravity

8
Bowens Reaction Series
OLIVINE
9
OLIVINE IS A DARK COLORED AND RELATIVELY DENSE
MINERAL. THIS IS BECAUSE IT IS A
  1. NON-FERROMAGNESIAN MINERAL
  2. FERROMAGNESIAN MINERAL
  3. A NON-SILICATE MINERAL
  4. NONE OF THE ABOVE

10
Bowens Reaction Series
AUGITE SINGLE CHAIN
11
Bowens Reaction Series
HORNBLENDE DOUBLE CHAIN
12
SILICATE STRUCTURE CONTROLS CLEAVAGE
13
Bowens Reaction Series
BIOTITE SHEETS
14
Bowens Reaction Series
Ca RICH PLAGIOCLASE
Na RICH FELDSPAR
15
Sizes and Charges of the Sixteen Most Common
Elements
Ions of Similar Charge Size Can Easily
Substitute for Each Other
16
Bowens Reaction Series
ORTHOCLASE
17
TRUE or FALSE
  • THE POTASIUM RICH FELDESPAR ORTHOCLASE IS NOT
    PART OF THE CALCIUM/SODIUM FELDSPAR SOLID
    SOLUTION SERIES

18
Bowens Reaction Series
MUSCOVITE SHEETS
19
Bowens Reaction Series
QUARTZ
20
STUDY GUIDES
BOWENS REACTION SERIES
SILICATE STRUCTURES
21
ACCORDING TO BOWAN'S REACTION SERIES
  1. QUARTZ IS THE LAST MINERAL TO CRYSTALIZE FROM A
    MELT
  2. QUARTZ HAS THE LOWEST MELTING TEMPERATURE
  3. QUARTZ CONTAINS NO IRON OR MAGNESIUM
  4. ALL OF THE ABOVE

22
(No Transcript)
23
EARTH STUDIES Geosciences 1000
MINERALS Building Blocks of the Planet Chapter
2 Silicate Structures
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