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USA (national)

Tennessee State Rock:

Tennessee limestone stalagtite - click to see all state rocks
Portion of a large fallen limestone stalagtite at Diamond Cave in Tennessee; the rock was cut and polished (with federal permission) to show the growth of stalagtite: photo by red clover on Flickr (noncommercial use permitted with attribution / share alike). See All State Rocks.

Limestone

Limestone, found throughout Tennessee, was declared the official state rock in 1979 (Tennessee also recognizes a state stone). Tennessee marble (the metamorphic version of limestone) is widely used in public and private buildings. Tennessee marble is a beautiful and decorative stone that graces exteriors, floors, counters, elevators and walls with the warm tones of this unique American "rock."

The Tennessee marble industry began nearly 200 years ago. Marble quarried in Tennessee was used as the primary building material for the state's capitol building. Tennessee marble has been used in major civic and government buildings from New York to California, including the National Gallery of Art, The Smithsonian, the Jefferson and Lincoln Memorials, and the National Cathedral.

Jefferson Memorial - click to see all rock & stone symbols
Interior floor of the Jefferson Memorial in Washington, DC is made
of Tennessee pink marble; photo by dbking on Flickr (use
permitted with attribution). See All State Rocks & Stones.

Lime is also produced from limestone. Lime was used as a mortar at least 7,000 years ago in Turkey (ancient Egyptians also used lime to make plaster and mortar). Today lime is used mostly in steel manufacturing and power plants to remove impurities and reduce emissions. Lime is also used in mining, paper production, water and wastewater treatment, road construction, and building construction. See Geological Symbols for all 50 states.

Limestone - click to see all state rocks & stones
Photo from Mineral Information Institute / Lime - Limestone
(used by permission). See All State Rocks & Stones.
Source:
Tennessee Symbols: TN Department of Education
Links:
All Geological Symbols

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Tennessee Symbols & Icons

bird 1-2
flower 1-2  
animal - horse
butterfly
insect 1-2-3
reptile
fish 1 - 2
amphibian
tree 1-2 - fruit
gem - rock
stone - soil

flag - seal - quarter
motto - slogan
name - nickname
poems 1 - 2
songs: 1-2-3-4-
5-6-7-8-9-10-11
folk dance
festival
museum 1 - 2
tartan - painting
art - theater
 

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Tennessee Gifts - Gifts by State