"rich mind" is a perfectly correct and usable phrase in written English.
You could use it when referring to someone who is intelligent and imaginative, such as: "She had a rich mind, full of innovative ideas."
In 2000, Tom Stevenson, a British writer, described the 1990 Vieilles Vignes as "the beast of Bollinger," a "hulking great blanc de noirs" and "a massive mouthful of fabulously rich, mind-bogglingly complex fruit".
I complained of Lucy Kirkwood's last play, NSFW at London's Royal Court, that it was too short: no such problems with this gloriously rich, mind-expanding three-hour play, which explores the complex relationship between China and America.
Hey, do you remember Anna Skladmann and her knack for taking portraits of immensely rich, mind-blowingly spoiled Russian children?
If we keep returning to Beuys, it is because his oeuvre is so rich, his mind was so sprawling, so fertile.
Certainly, with Rich in mind, it's pretty clear that cruising is an activity that cuts across all sexual dispositions.
If travelers to the world's most remote locales are likely to come home richer in mind and experience, they'll be significantly poorer in other ways.
The two writers met a second time in Leipzig, in 1910, when Cerna declared himself captivated by Caragiale, whom he described as "one of the richest intelligent minds to have ever been produced by our nation".
His record suggests a rich and flexible mind.
"It's a bit rich, bearing in mind some of the things the members of Ukip have said, for their leader to say they have crossed the line.
It feels like the whole of an existence, circumscribed, confined and yet rich in the mind, condensed to the visual equivalent of a sonnet.
He inventories the advice dispensed by authors on how to get thin, get rich; improve your mind, your body, your sex life; and overcome pain, shame and poor self-esteem -- in short, how to achieve total happiness and fulfillment.
