Precision Optical Laser Crystal Quartz Optics Synthetic Z-Cut 46mm x 32mm rough Overall solid condition. All my glass/quartz came from a government lab that was cutting their own crystal for laser optics (and other unknown applications). We have bought lasers from this same lab, many are Coherent and Melles Griot. If you can, look into the quartz from the corner cut and you will get a glimpse of the purity of this fine specimen! 124 grams / 4.38 ounces 46 x 32 x 34 mm (with a piece cut off one corner - as seen) We are not experts in laser optics, but please ask questions and we will try and answer you the best we can. **Please look at my other quartz lots. I have other optical crystal listings and will be listing many more. if you want a bunch of this, we can work out a deal**** Will ship international. Please look at pictures. I am in military reserves and sometimes get called away for duty. I will ship as soon as I can. Overall solid condition. All my glass/quartz came from a government lab that was cutting their own crystal for laser optics (and other unknown applications). We have bought lasers from this same lab, many are Coherent and Melles Griot. If you can, look into the quartz from the corner cut and you will get a glimpse of the purity of this fine specimen! 124 grams / 4.38 ounces 46 x 32 x 34 mm (with a piece cut off one corner - as seen) We are not experts in laser optics, but please ask questions and we will try and answer you the best we can. **Please look at my other quartz lots. I have other optical crystal listings and will be listing many more. if you want a bunch of this, we can work out a deal**** I am in military reserves and sometimes get called away for duty. I will ship as s