Quartz

Photograph of a quartz molecular model, courtesy of Indigo® Instruments.
Found naturally as faceted crystals. Its birefringent properties are used in the production of optical quarter-wave plates and polarizers. A mineral whose primary component is silicon dioxide (SiO2). Its colour and other aspects of its appearance depended on the impurities present.


Symbol
SiO2

Click on an item to paste into clipboard or use clipboard symbol at end to clipboard all values
Density 2649 kgm-3Clip
Melting Point 1740 KClip
Youngs modulus 7.65e10 to 9.72e10 Nm-2Clip
Linear expansivity 0.0000005 K-1Clip
Specific heat capacity 710 Jkg-1K-1Clip
Thermal conductivity 6.2 to 10.7 Wm-1K-1Clip
Dielectric constant 4.5 Clip
Mohs Hardness 7 Clip
paste all data into clipboardpaste all data into clipboard

See also: Fused Silica, Silicon Dioxide.

Previous PageView links to and from this pageNext Page

Subjects: Chemistry


Weblinks:
Indigo Instruments Quality, affordable science lab supplies on-line since 1994. 100% Uncompromised Privacy; Secure On-Line Ordering™