Rocks and More Rocks Poster Photo credits:
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Photo of granite close-up by David Monniaux, from en.wikipedia.org/wiki/Granite, used with permission
Photo of Half Dome by Jon Sullivan, from en.wikipedia.org/wiki/Granite, released to public domain
Photo of diorite close-up owned by U.S. Government, from en.wikipedia.org/wiki/Diorite, released to public domain
Photo of man holding diorite ball by Scitim at English Wikipedia, from
en.wikipedia.org/wiki/Obelisk_building_technology_in_ancient_Egypt, used with permission
Photo of gabbro close-up by Mark A. Wilson, from en.wikipedia.org/wiki/Gabbro, released to public domain
Photo of gabbro landscape by Adrian Pingstone, from en.wikipedia.org/wiki/Gabbro, released to public domain
Photo of obsidian close-up by Ji-Elle, from en.wikipedia.org/wiki/Obsidian, used with permission
Photo of Glass Mountain by Daniel Mayer, from en.wikipedia.org/wiki/Obsidian, used with permission
Photo of pumice close-up by Benjamint444, from en.wikipedia.org/wiki/Pumice, used with permission
Photo of pumice on #20 bill by Robert DuHamel from en.wikipedia.org/wiki/Pumice, used with permission
Photo of basalt close-up by U.S. Geological survey, from en.wikipedia.org/wiki/Basalt, released to public domain
Photo of basalt columns in Yellowstone Park by Brocken Inaglory, from en.wikipedia.org/wiki/Basalt, used with
permission
Photo of sandstone close-up owned by U.S. Government, from http://en.wikipedia.org/wiki/Sandstone, released to public
domain
Photo of Antelope Canyon by Moondigger, from http://en.wikipedia.org/wiki/Sedimentary_rock, used with permission
Photo of shale close-up owned by U.S. Government, from http://en.wikipedia.org/wiki/Shale, released to public domain
Photo of splitting shale by Mark A. Wilson from http://en.wikipedia.org/wiki/Shale, released to public domain
Photo of close-up of limestone by Jim Stuby from http://en.wikipedia.org/wiki/Limestone, released to public domain
Photo of Cheops Pyramid by Berthold Werner from http://en.wikipedia.org/wiki/Limestone, used with permission
Photo of close-up of coal owned by U.S. Government, from http://en.wikipedia.org/wiki/Coal, released to public domain
Photo of coal vein by Michael C. Rygel, from http://en.wikipedia.org/wiki/Coal, used with permission
Photo of close-up of chert owned by U.S. Government, from http://en.wikipedia.org/wiki/Chert, released to public
domain
Photo of chevron patterned chert by Eurico Zimbres, from http://commons.wikimedia.org/wiki/Category:Chert, used
with permission
Photo of close-up of marble owned by U.S. Government, from http://en.wikipedia.org/wiki/Marble, released to public
domain
Photo of Taj Mahal by Dhirad, from http://en.wikipedia.org/wiki/Marble, used with permission
Photo of close-up of quartzite owned by U.S. Government, from http://en.wikipedia.org/wiki/Quartzite, released to
public domain
Photo of Swan Peak Quartzite by Mark A. Wilson, from http://en.wikipedia.org/wiki/Quartzite, released to public
domain
Photo close-up of soapstone by Helix84 from http://en.wikipedia.org/wiki/Soapstone, used with permission
Photo of soapstone statue by Marie-Lan Nguyen from http://en.wikipedia.org/wiki/Soapstone, used with permission
Photo of close-up of slate owned by U.S. Government, from http://en.wikipedia.org/wiki/Slate, released to public domain
Photo of slate-clad houses and churches by Covânt, from http://en.wikipedia.org/wiki/Slate, released to public domain
Photo of close-up of phyllite owned by U.S. Government, from http://en.wikipedia.org/wiki/Phyllite, released to public
domain
Photo of folded phyllites by Mikenorton, from http://commons.wikimedia.org/wiki/Category:Phyllite, used with
permission
Photo of close-up of schist by Michael C. Rygel, from http://en.wikipedia.org/wiki/Schist, used with permission
Photo of schist outcrop by Siim Sepp, from http://commons.wikimedia.org/wiki/Category:Schist, used with permission
Photo of close-up of gneiss by Siim Sepp, from http://en.wikipedia.org/wiki/Gneiss, used with permission
Photo of Joshua Tree National Park by Wattewyl from http://commons.wikimedia.org/wiki/Category:Gneiss, used with
permission
Diagram of Rock Cycle by Woudloper, subsequently modified by ZeWrestler, from
http://en.wikipedia.org/wiki/Rock_cycle, released to public domain
Clipart by Microsoft, released to public domain
Igneous Rocks: granite, diorite, gabbro, obsidian, pumice, basalt
Sedimentary Rocks: sandstone, shale, limestone, coal, chert
Metamorphic Rocks: marble, quartzite, soapstone, slate, phyllis, schist, gneiss
Put photo credits on the back of the poster. Laminating is recommended.
Granite
(intrusive)
Close-up of granite from
Yosemite National Park,
California
Half Dome at Yosemite, a
classic granite dome and
popular rock climbing
destination
Diorite
(intrusive)
Close-up of diorite
Modern Egyptian shows the
use of diorite balls as carving
tools for granite, at Aswan
Gabbro
(intrusive)
Close-up of gabbro from
Rock Creek Canyon, eastern
Sierra Nevada, California.
A gabbro landscape on the
main ridge of the Cuillin,
Isle of Skye, Scotland
Obsidian
(extrusive)
Close-up of obsidian
Glass Mountain, a large obsidian
flow at Medicine Lake Volcano,
California
Pumice
(extrusive)
Close-up of pumice
A 6 inch piece of pumice sitting
on a rolled-up U.S. $20 bill
shows its very low density
Basalt
(extrusive)
Close-up of basalt
Columnar basalt flows
in Yellowstone National Park
Igneous Rocks
 Formed by cooling of molten rock
 Found where volcanoes are or once
existed
 Intrusive igneous rocks cooled
under ground and have small but
visible crystals.
 Extrusive igneous rocks cooled
above ground and have tiny or no
crystals.
Sandstone
(layers of sand)
Close-up of sandstone
Antelope Canyon in Arizona
Shale
(layers of mud and clay)
Close-up of shale
Splitting shale to find fossils
Limestone
(layers of ground up shells)
The Great Pyramid of Giza has
an outside cover made entirely
of limestone.
Close-up of limestone
Coal
(lumps of decomposed plants)
Close-up of coal
Coastal exposure of the Point
Aconi Seam at Point Aconi,
Nova Scotia, Canada
Chert
(still sedimentary, results from diagenesis!)
Close-up of chert
Chevron folds in chert of Marin
Headlands, San Francisco
What is sediment ?
Small particles of sand, dirt,
broken seashells, plants, and
dead bugs that settle to the
bottom of a liquid (often water)
Sedimentary Rocks
 Formed by compression of layers
of sediment
 Found where water is or once
existed
What is diagenesis ?
The changes that happen to
sediments during and after
sedimentary rocks are formed
but before metamorphosis
Marble
(no layers, starts out as limestone)
Close-up of marble
The Taj Mahal in India is
entirely clad in marble.
Quartzite
(no layers, starts out as sandstone)
Close-up of quartzite
Swan Peak Quartzite, near
Tony Grove Lake, Utah
Soapstone
(no layers, starts out as talc)
Close-up of saopstone
Soapstone statue, circa 2090
BCE, from Mesopotamia
Look! Many stages
of metamorphosis!
Look! Many stages
of metamorphosis!
Slate
(has layers, starts out as shale)
Close-up of slate
Slate-faced church and homes
in Germany
Phyllite
(has layers, starts out as slate)
Close-up of phyllite
Folded phyllites near
Ben Lomand, UK
Schist
(has layers, starts out as phyllite)
Roadside outcrop of schist in
Scotland, UK
Close-up of schist
Gneiss
(has layers, starts out as schist)
Close-up of gneiss
The dark mountain rock is
gneiss, at Joshua Tree
National Park, California
Metamorphic Rocks
 Formed by heating and/or
compression of pre-existing rocks
deep underground
 Found where the earth has shifted
to expose underground rocks
 Foliated metamorphic rocks have
layers
 Non-foliated metamorphic rocks
do not have layers
What is a Rock?
A rock is a collection of minerals
that are held together to form a
clump.
Rock cycle chart may have to be put on the back of the poster.