Natural quartz for general applications.
Flatness: one wave length (589 nm) per cm.
For greater degrees of flatness, prices on application.
Parallelism: 1 min. of arc.
Tolerance on thickness: +/- 0.10 mm.
DIG Specification: DIN 3140 5/2 x .25 per 25cm2
Custom sizes, thicknesses, chamfers, steps and bevels are available in ground or polished finishes. Please use our enquiry form to let us know exactly what you require.