The phrase "are virtually unique" is correct and usable in written English.
It can be used to describe something that is almost one-of-a-kind or has very few similar examples.
Example: "These artifacts are virtually unique, showcasing a style that has not been replicated in any other known culture."
Alternatives: "are nearly one-of-a-kind" or "are almost unparalleled."
"Kashmir sapphires are rare and these are virtually unique," Mr. Zucker said.
Since the demise of Happy Mondays, the Delgados are virtually unique in even acknowledging the subject of the underclass, one that now seems to be sectioned off from rock songwriting like a dilapidated building tourists aren't supposed to see.
Total cotinine and total NNAL, which are virtually unique to users of tobacco products and related materials, or people exposed to secondhand tobacco smoke, are excellent indicators of tobacco dose and are directly associated with lung cancer risk in smokers.
In a study to investigate East Asian genetic diversity, Di and Sanchez-Mazas [ 46] found that some HLA alleles observed in southern East Asian populations are virtually unique in Asia.
Ireland is virtually unique among its European neighbours in not having any property-based charges.
Each individual is virtually unique for his or her histocompatibility antigens, with the exception of identical twins.
In essence, it appears that the great variation in chemical and physical properties seen in soils from this continental-scale survey resulted in each sample being virtually unique.
In a statement, it said: "The Viewing Level is an intrinsic part of the free public offer of the new building, providing a 360-degree experience that is virtually unique to London.
In its freedom from the conventional physical analogies of the creative act and in its degree of abstraction, this text is virtually unique in Egypt, and it testifies to the philosophical sophistication of the priests of Memphis.
If you can bring audiences to revivals, why can't there be new musicals that will become revivals in 20 or 30 years?" Stephen Sondheim, a longtime friend of the Prince family, said that Mr. Prince was virtually unique in his commitment.
Given the information available, given the state and federal parties' ability to provide additional contrary data, and given their failure to do so, we can assume for constitutional purposes that the following statement is true: Outside the California three-strikes context, Ewing's recidivist sentence is virtually unique in its harshness for his offense of conviction, and by a considerable degree.
