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Technical Information - Quartzite
MOHZ SCALE
Among the most meaningful
physical properties, QUARTZITE stands out as seven on the Mohz
Scale of mineral hardness, which the maximum point is ten
(corresponding to the diamond).
The Mohz Scale, created by the German mineralogist Friedrich Mohs,
is used to evaluate the resistance of abrasive minerals and its
capacity to scratch other minerals.
|
MOHS SCALE OF |
|
MINERAL HARDNESS |
|
1.0 |
talc |
|
2.0 |
gypsum |
|
3.0 |
calcite |
|
4.0 |
fluorite |
|
5.0 |
apatite |
|
6.0 |
orthoclass |
|
7.0 |
quartzite |
|
8.0 |
topaz |
|
9.0 |
sapphire |
|
10.0 |
diamond |
The quality of our QUARTZITE stones
have been tested and approved by the most respected stone
laboratory in the world: SGC - U.S. Testing Company Inc.
TECHNICAL ANALYSIS
|
Test |
Description |
Result |
|
ASTM C97 |
Water Absorption |
0.12 % |
|
ASTM C99 |
Modulus of Rupture |
2207 psi / 15.22 mpa |
|
ASTM C241 |
Abrasion Resistance |
28.88 % |
|
ASTM C1028 |
Coefficient of Friction - Dry |
0.66 % |
|
ASTM C1028 |
Coefficient of Friction - Wet |
0.71 % |
|
ASTM C666-92 |
Resistance to Rapid Freeze &
Thawing |
Approved |
|
ASTM C880 |
Flexural Strength Tests |
2442 psi |
CHEMICAL ANALYSIS
|
Element |
% |
Element |
% |
|
Al2O3 |
1.8 % |
P2O5 |
0.04 % |
|
SiO2 |
94.0 % |
Na20 |
0.34 % |
|
MgO |
1.39 % |
K2O |
0.73 % |
|
TiO2 |
0.07 % |
MnO |
0.04 % |
|
Fe2O3 |
0.55 % |
P.F. |
0.25 % |
|
CaO |
0.61 % |
|
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Another characteristic of quartzite
stone is that it shows a notable chemical and thermic stability.
This makes them ideal for flooring around swimming pools,
driveways and any other areas that are exposed to the sun, since
quartzite don't absorb heat and when wet are anti-skidding.
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