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Technical Information about GE 124 Quartz Material

The fused quartz material used for our Quartz Discs, Quartz Microscope Slides, and Quartz Cover Slips is a high quality, high purity GE124 quartz. This quartz material is well documented and used in many microscopy applications. Fused quartz is an amorphous, glassy material.

Typical Trace Element Composition (ppm by weight)
Analysis via Direct Reading Spectrometer
Type Al As B Ca Cd Cr Cu Fe K Li Mg Mn Na Ni P Sb Ti Zr *OH
GE 124 14 <0.002 <0.2 0.4 <0.01 <0.05 0.05 0.2 0.6 0.6 0.1 <0.05 0.7 <0.1 <0.2 <0.003 1.1 0.8 <5

Typical Physical Properties
Density 2.2 x 103 kg/m3
Refractive index 1.4585
Softening point 1683°C
Annealing point 1215°C
Strain point 1120°C
Hardness 5.5 - 6.5 Mohs Scale
Compressive Strength 1.1 x 109 Pa (160,000 psi)
Tensil strength 4.8 x 107 Pa (7000 psi)
Electrical resistivity @350°C: 7 x 107 ohm/cm
Young's Modulus 7.2 x 1010 Pa (10.5 x 106 psi)
Thermal Expansion Coefficient 5.5 x 10-7 mm/mm.°C
Thermal Conductivity 1.4 w/m.°C

Optical Transmission
The curve shows the typical optical transmission curve with the absorption edges for GE 124 from the UV through visible into the infra-red range. In the typical 250-290nm range for UV microscopy applications the material exhibits excellent transmittance.

Graphs Compliments of Supplier