Quartz is one of the most common minerals in the Earth’s crust. As a mineral name, quartz refers to a specific chemical compound (silicon dioxide, or silica, SiO2), having a specific crystalline form (hexagonal). It is found is all forms of rock: igneous, metamorphic and sedimentary. Quartz is physically and chemically resistant to weathering. When quartz-bearing rocks become weathered and eroded, the grains of resistant quartz are concentrated in the soil, in rivers, and on beaches. The white sands typically found in river beds and on beaches are usually composed mainly of quartz, with some white or pink feldspar as well.

Property Results
Water Absorption 0.02%
Specific Gravity 148.3 lbs/ft3
Modulus of Rupture 9,300 psi
Dry 23,700 psi
Wet 22,100 psi
Flexural Strength 8,700 psi
Weather Resistance No Damage
Density 2.38 g/cm3
Bond Strength 237 ppsi
Thermal Shock No Damage Passed 25
Wear Resistance 139 lw
Thermal Expansion 2.61×10-5 in/in F
Breaking Strength 480 lbs
Chemical Resistance No Damage
De-icing Resistance No Damage
Dry 0.78
Wet 0.61
Izod Impact 0.363 ft lbs/in
Chemical Reagents Resistance No Damage
Mold Resistance No Microbial Growth
Flame Spread Index 5
Smoke Development Index 75
MOH’s Hardness 6.5

Used in a large number of circuits for consumer electronics products
Cell phones,
Electronic games,
Used to make frequency control devices and electronic filters

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