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Gallery
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Technical Data
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Technical Data for Sequatchie Gray and Varigated Flagstone
Property
Value
Type
Tennessee Quartzite
Classification
III quartzite; flagstone
Colors
gray or varigated
Patterns
random; irregular
Finish
natural cleft
Absorption
Max. 1.53%
Density
Min. 160#/ft
Compressive strength (dry or saturated)
Min. 12000# psi
Modulus of rupture
12000 psi
Abrasion resistance
8
Chemical Composition
Alumina
2.98%
Iron oxide
0.72%
Magnesium oxide
0.42%
Titanium oxide
0.25%
Calcium oxide
0.10%
Loss on ignition
0.60%
Silica (by difference)
94.93%