The phrase "a practice of mine" is correct and usable in written English.
You can use it to refer to a habit or routine that you regularly engage in.
Example: "Meditation is a practice of mine that helps me stay focused and calm."
Alternatives: "a habit of mine" or "a routine of mine".
Like a lot of journalism professionals who make a practice of mining data, Mr. Waite said he was concerned that the criticism against The Journal News — there have been threats against people who work there — could actually hurt the cause of free speech, if it prompted officials to close off public records.
He and his team make a practice of visiting mines in which they invest, but civil unrest and a remote location have thwarted a trip to Tien Shan in Kyrgyzstan.
After the verdict, Mr. Morgenthau released a statement saying: "It has been a longstanding practice of mine not to comment on jury verdicts, and I will maintain that policy in this case.
And I would say that gratitude is a spiritual practice of mine.
Well, deferring my judgment to others had never been a common practice of mine, but my word was sacrosanct.
Now, I've had to limit my choice of long-distance phone companies because of this practice of mine, but I think it's more productive in the long run than trying to be "activist" with software licensing.
He said Oakeshott was "a passionate advocate for ending the practice of mining companies and property developers buying influence".
The geological strength index (GSI) system, widely used for the design and practice of mining process, is a unique rock mass classification system related to the rock mass strength and deformation parameters based on the generalized Hoek-Brown and Mohr-Coulomb failure criteria.
While China is not known for its Alpine tradition or prowess, the aerials program there has pioneered the practice of mining gymnastics programs for aerials talent.
"Should Kumtor be prevented from continuing its practice of mining ice, the entire [project] … would be at risk, leading to an early closure of the operation," Centerra Gold warned in a 2015 technical report (pdf).
