Wikipedia
The Russian Blue is a cat breed that comes in colors varying from a light shimmering silver to a darker, slate grey. They develop close bonds with their owners and are sought out as pets due to their personalities, beauty and coat. It is their short, dense coat which has been the hallmark of the Russian breed for more than a century. The dense coat stands out from the body and you can draw patterns in the coat that will stay until you smooth them out again.
Usage examples of "russian blue".
Gorenko had always publicly ridiculed the American aircraft carriers, but he knew the advantages they offered in antisubmarine warfare, and suspected that a future Russian blue-water navy would need them in some form.
Archie's a Burmese and Ubi's a Russian Blue, and neither one looks as though he's missed a meal since his first victory over a ball of yarn.