The phrase "are far from common" is correct and usable in written English.
It can be used to indicate that something is rare or not frequently encountered.
Example: "These species of plants are far from common in this region, making them a unique find for botanists."
Alternatives: "are quite rare" or "are not typical".
But there are a handful of esoteric styles that are far from common.
Even in these enlightened times, with snowboarding still booming in popularity, chalets dedicated to the sport, its baggy-trousered practitioners and their particular needs are far from common.
Such inquiries - set up under the Police Act, to look into a matter of serious public concern - are far from common and bring to light facts and opinions that are frequently hidden from view.
This was far from common at the time.
That kind of opposite movement for the Dow and the Nasdaq is far from common.
Obvious as it seems, this was far from common practice until about 10 years ago.
Although in the 20th century it is far from common, British and American women also play polo.
Though it was far from common in the 1940s for girls like her to receive an education, Wangari was sent to primary school at her brother's suggestion at the age of eight.
Although it's far from common for applicants to be granted a second hearing by the human rights court, there is no reason to suppose that judges sitting in grand chamber will reach a different conclusion from their colleagues in the seven-person chamber.
What you do get is still something remarkable: an amazement at this little-known history and its prime movers, along with an interest in the ways in which women of different classes felt the calling to write at a time when literacy was far from common and women's literacy almost unheard of.
I guess there are ways, but it's far from common.
