The Periodic Element Guys are proud to present an Optical grade USED Chipped Single Crystal Lens Germanium metal disc 99.999% 7 Grams
These Used Germanium Single crystal lens are labor intensive and expensive to make. Diameter 30mm Weight 7 Grams plus. They may have a 1 or 2 chips on them. They can be filed smooth and refurbished. They are amazing value for single Crystal Germanium!
Only pay shipping for the first one and buy as many as you want included!
Germanium Metal is much rarer than many people think, with only a few hundred tons being produced annually. It is mainly used for infrared and optical lenses as well as semiconductors and fluorescent lamps. It’s demand has been slowly going up leading to the Kitco exchange price of $2122 per Kg. Demand is expected to increase sharply, as unlike silicon, there is a finite supply.
The Periodic Element Guys give you 60 days to return any items in unused/unopened condition, and get a full refund. (Return Postage at buyers expense). This can be for any reason or for no reason, across all our platforms for any of our products
How was the Periodic Element guy born?
An English father of 2 children wanted to wean his children off video games and try and get them interested in Science and the Periodic table of elements, and the different forms they come in. But to collect the raw elements would become messy and could be dangerous. They could always collect the cubes, and although nice for display, they are only showing one medium, and can be expensive to collect. What if they could hold, view, collect and display different forms of different elements in a safe, neat, inexpensive and cool way?
And now 15 months later, we are proud to present 3 sizes of Acrylic airtight Tiles. 12 different Mediums like natural, foil, pellets, ingots, powder, wire, grains etc.. Over 80 elements and adding more all the time. And each and every element tile is hand Created with a minimum of 2 Vinyls on each one. Also each and every tile will be unique with either different size pieces or different weight.
Terms and conditions of purchase.
The PE Guys sells only to adults over the age of 18.
All of the elements can be dangerous if not used in the right way and by purchasing any, you take full responsibility in them.
None of our elements are edible. If you or any other person swallows any, Please seek medical help IMMEDIATELY
You can return any item to us up to 60 days after purchase for a full refund. Buyer pays return postage. We try to write the scrap value for customs declaration. But you may still be required to pay taxes. That is always the buyer's responsibility. We always use your address from Paypal. Shipping can be delayed for a number of reasons that are out of our control. Please be patient. We always subsidize shipping costs to make the lowest price for you.
