Granite is an igneous rock formed from cooling magma deep underground. It is composed mainly of quartz, feldspar and mica which give it a red, gray, pink or white color with visible crystals. Granite forms part of the Earth's crust and can be found on all continents, including locations like Stone Mountain in Georgia and Yosemite Valley in California. It has economic value as a building material used for construction of buildings, bridges and monuments.

1. Jenni fer Kinser
Cai tl in Floyd
MGMS 7401
GRANITE

2. ROCK OR MINERAL?
 Granite is a rock.
 More specifically it is classified as an Igneous Rock.
(Al len, 2009)
Images retrieved from http://geology.com/rocks/granite.shtml

3. FORMATION
 Created from magma that could be as deep as 40 mi les
 Magma cools slowly under the ground creating large crystals
 Instrusive rock: meaning it cooled under the sur face
 70-80% of Ear th's crust
(Sti l le, 2008)
Image retrieved from
http://mowse.blogspot.com/2013_05_01_archive.html

4. WHAT MAKES UP GRANITE?
Image retrieved from http://www.mnh.si.edu/earth/text/3_1_2_1.html

5. COMPOSITION
Quartz
Feldspar
Mica
Amphiboles
Other minerals
This combination of
minerals creates a
red, gray, pink, or
white color with
visible crystals
(Mottana, Crespi, &
Liborio, 1978)
Granite’s minerals in relative proportion. Image retrieved from
http://www.mnh.si.edu/earth/text/3_1_2_1.html

6. VIDEO
Yosemite Nature Notes - Granite

7. ECONOMIC VALUE
Used for thousands
of years
Interior
 counter tops
Stairs
Exterior
Bridges
Monuments
(Granite, 2014)
Image retrieved from
http://www.buildingconservation.com/articles/rockofages/roc
kofages.htm

8. CONCERNS WITH GRANITE
blistering
 chipping
 cracking
detachment
ef florescence
 erosion
 flaking
peeling
 rising damp
 spalling
Subflorescence
(Granite, 2014)
Image retrieved from
http://www.concretecountertopinstitute.com/blog/wp-content/
uploads/2012/11/cracked-granite.jpg

9. GRANITE EVERYWHERE!
Granite can be found in natural exposures
such as:
Stone Mountain, Georgia
 Yosemite Valley, California
Mt. Rushmore, South Dakota
Pikes Peak, Colorado
White Mountains, New Hampshire (King, n.d)
Found on all continents
Found under most mountain chains (Hyslop &
Lott, 2007)

10. GRANITE ACROSS THE USA
Image retrieved from
https://www.fhwa.dot.gov/publications/publicroads/11septoct/images/mein5.jpg

11. GRANITE IN GEORGIA
Stone Mountain
 Located in the largest body
of granite in the state
Elberton, Georgia
 Largest producer in the
world
(Core and Witherspoon,
2013)
Image retrieved from
http://files.hgsitebuilder.com/hostgator420580/image/ston
e_mountain__georgia_by_deviantvicky-d51ibb5.jpg

12. GRANITE ACROSS GEORGIA
Image retrieved from http://www2.westminster.net/faculty/newman/3/mineralpics/Georgiamap.jpg

13. REFERENCES
 Al len, N.K. (2009). Granite and other igneous rocks. New York,
NY: PowerKiDS Press
 Core, P. J. W. , and Witherspoon, W. (2013) . Roadside Geology
of Georgia. Missoula, MT, United States of America: Moutain
Press Publ ishing Company.
 Granite: Characteristics, Uses, and Problems. (2012) . U.S.
General Services Administration. Retrieved September 25,
2014 from http://www.gsa.gov/por tal/content/111938
 Hyslop, E. & Lott, Graham. (2007). Rock of ages: the story of
British granite. Retrieved September 28, 2014 from
http://www.mnh.si.edu/ear th/text/3_1_2_1.html
 King, H. (n.d) . Granite. Retrieved September 25, 2014 from
http://geology.com/rocks/granite.shtml

14. REFERENCES
 Mottana, A, Crespi , R. & Liborio, G. (1978) . Rocks and
minerals. New York, New York: Simon and Schuster.
 Sti l le, D. R. (2008) . Igneous rocks from f ire to stone.
Minneapol is, Minnesota: Compass Point Books
 The Editors of Encyclopedia Britannica. (n.d) . Granite.
Retrieved September 25, 2014 from
http://www.britannica.com/EBchecked/topic/241660/granite
 The Rock – Granite. (n.d) . Amethy st Ga l l eries’ Mi ne ral Ga l l er y.
Retrieved September 25, 2014 from
http://www.gal leries.com/rocks/granite.htm
 Three rocks and their minerals. (n.d) The Dynamic Ear th.
Retrieved September 24, 2014 from
http://www.mnh.si.edu/ear th/text/3_1_2_1.html