| Here is are man grown Quartz from W W II era. I had a several hundred of these which sold very well a few years ago in Tucson. I just came across a box with 10 that did not go to Tucson. These are all undamaged ones that I set back. Quartz like glass chips rather easily and most had damage. This one does not except for a few very very micro chips not worth mentioning. This is the larger style. These were grown in Pennsylvania and the quartz, silicon used by the government. Now Quartz is still grown for computer chips. |
