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Quartz Microscope Slides

UV-transparent object carriers for microscopy
made of optical grade Fused Silica

Special Properties

  • Made of synthetic Fused Silica
  • UV-light transmission of greater than 80% at 185 nm
  • Much higher purity and material quality than conventional Fused Quartz slides offer
  • Optical grade surface finish
  • Low micro-roughness
  • Excellent flatness
  • Crystal clear appearance
  • Small light absorption
  • High chemical strength
  • Temperature resistance up to 1000 °C

Typical Applications

  • Microscope slides for scientific microscopy applications
  • Object carriers for medical lab use
  • Analytics and biotechnology
  • Scientific UV- and DUV microscopy
  • Coverslips with low loss and absorption
  • High-temperature microscope stages
  • Sample storage solutions
  • Chemically resistant microscope slides
  • UV-permeable and inert coverslips
  • UV-microscopy equipment
  • Quartz slides for medical and cell research
  • Quartz covers for UV-spectroscopy

Related websites

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48h-Express Service 48 h Express-Service available*

Quartz microscope slideOur company fabricates and supplies quartz microscope slides based on optical grade high-purity synthetic amorphous silicon dioxide. Unlike conventional quartz slides made of natural fused quartz glass, our quartz object carriers have a material quality typically used for sophisticated optics. They feature a significantly higher transmission for lower UV-wavelengths than fused quartz-based microscope slides can provide. Their excellent purity allows scientific applications in the deep ultraviolet range (DUV) and reduces absorption losses in this wavelength range to a minimum. All of the microscope slides we fabricate from synthetic quartz are double side optically polished. They offer more than 80% light transmission even at a very low UV wavelength of 185 nm, whereas conventional fused quartz slides typically transmit less than 50%.

Our quartz glass slides are characterized by excellent flatness and surface quality known from optics. Also, they offer the exceptional purity and high chemical resistance of amorphous quartz, thus enabling contamination-free sample storage solutions in the laboratory. No substances or chemicals dissolve into the sample from the inert quartz microscope slides or coverslip, representing a mandatory requirement for many demanding microscopy applications in medical cell research, life science, analytics, biotechnology, and specimen storage solution equipment in the lab.

Präzisions Glas & Optik GmbH supplies all standard sizes of quartz microscope slides and coverslips used in science and the lab. (see table). As a manufacturing company, we do not limit ourselves to the few quartz items listed in the table. Almost any shape and size is possible. So whenever you need round quartz plates, cover glasses, square cover plates, or other types of quartz glass components, we almost always can provide a solution.

Our delivery time for quartz microscope slides with custom dimensions is just as short as for the listed sizes, so a shopping cart for a limited number of items does not make sense. If you search for an ultra-fast delivery of custom-sized quartz microscope slides, our 48 h Express Service is possible for any glass thickness listed in the thickness table. This unique option offers the manufacturing and shipping of custom-sized quartz microscope slides within two working days after receiving your order, provided there are no other complex manufacturing steps required. When you order by our 48 h Express Services, you have your tailored quartz slide on your lab table very quickly, so you can continue your project or daily business without delay.

Please use the button below or select a thickness from the table to request a price quote for quartz microscope slides at any size:


Get a quote

48h-Express Service 48 h Express-Service available*


UV-transmission of our synthetic quartz
microscope slides

View transmittance of our quartz microscope slide materials (click to enlarge)
View enlarged curve to see more details

UV Light Transmission

  • T > 80% at 185 nm

Microscope Slides made of Synthetic Quartz
Common dimensions

(To request a quote, click on the slide thickness)




in inches

Slide Thicknesses


10 x 10 0,4 x 0,4 0,30, 0,50, 1,00
19 x 19 0,75 x 0,75 0,30, 0,50, 1,00
23 x 23 0,9 x 0,9 0,30, 0,50, 1,00
23 x 46 0,9 x 1,8 0,30, 0,50, 1,00
23 x 66 0,9 x 2,6 0,30, 0,50, 1,00
23 x 75 0,9 x 3,0 0,30, 0,50, 1,00
25 x 25 1 x 1 0,30, 0,50, 1,00
25 x 46 1 x 1,8 0,30, 0,50, 1,00
25 x 50 1 x 2 0,30, 0,50, 1,00
25 x 66 1 x 2,6 0,30, 0,50, 1,00
25 x 75 1 x 3 0,30, 0,50, 1,00
46 x 66 1,8 x 2,6 0,30, 0,50, 1,00
50 x 75 2 x 3 0,30, 0,50, 1,00
70 x 70 2,75 x 2,75 0,30, 0,50, 1,00
Custom thicknesses on request.
The bold numbers represent the most common standards of microscope slides and coverslips used in the science lab. However, if smaller slide dimensions fit your equipment, please consider that these sizes might significantly lower the piece price over the standardized quartz slide sizes. For example, the price of a quartz microscope slide at 23mm x 66mm x 1mm is considerably lower than that of a 25mm x 75mm x 1mm dimension. Also, round plates, other shapes, and coverslips are possible. Please send us your inquiry.

Quickly available Fused Silica standard thicknesses

(Please click on glass thickness to request a quote)

Thickness (mm)


48h-Express Service
0,30 ±0,05
0,50 ±0,03
0,50 ±0,05
1,00 ±0,025
1,00 ±0,10
2,00 ±0,15
3,00 ±0,20
You can order the thicknesses marked with "" via our 48–h Express Service.

Refractive Index

  • nd = 1,4585


  • 2,20 g/cm3

Coefficient of Thermal Expansion

  • ca. 0,57 x 10-6/K

Maximum Operating Temperature

  • ca. 1000 °C

Surface Quality

  • 60-40 scratch & dig (MIL-0-13830A)

Note: Besides the quartz microscope slides and coverslips often used in the laboratory described on this website, our company supplies specialty optical products made of other materials from our extensive product range. If you search for specialty microscope slides, coverslips, or need additional support, please contact us with your requirements. Our support will answer immediately.


All given details and specifications are mean reference values and are not guaranteed. Also, please consider the "Notes on specifications".

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Last update 19.07.2021