Solid Copper Polished Density Cube 10mm - 8.9gElemental metallic 1 cm elemental cubes These highly polished cubes are great educational tools Story Each cube is highly polished by hand and laser engraved with its periodic info. Size: 10x10x10mm Weight: 8. 96g Sample Purity: 99. 95% Surface: Mirror Finish Each Copper cube is solid and of high purity of 99. 95%, highly polished by hand for many hours to reach a mirror finish, and laser engraved with its periodic info. This is an heirloom piece that

Dishwasher safe

Preparing the glaze

They are of museum quality and perfect for display

tea enthusiasts

It is entirely safe for those with allergy sensitivities

Heating: Bringing the colors out of the different alloys requires very careful and patient heating

and ultralight

Strong and solid

creating a unique and nuanced taste profile

ensuring your cup is always ready for the next use

and last forever

Quality Control and Finalizing: Post-firing