| Element | % | | Oxide | % |
| O | 11.18 | | | |
| Cu | 88.82 | | Cu2O | 100.00 |
|
|
|
| Sum | 100.0 | | Sum | 100.0 |
|
|  | |
| 200 µ m
| |
|
This is a reflected light micrograph of polished, carbon coated cuprite crystals.
The identifying etched label, which is a feature
of our standards, is invaluable for navigating in an electron beam instrument.
This is a good standard for copper
in an oxide matrix, and it is durable as can be seen from its high
reflectivity and scratch-free surface. The name, and the chemical
symbol for copper, come from the Greek for copper (and Cyprus)- cupros.
|