This is the 1475th most frequent Polish word.
górniczej
"Of mining" or "miner's" (genitive or locative form in Polish).
Here, 'górniczej' is used as an adjective modifying 'szkole', referring to a school specialized in training or education related to mining.
Pracuję w szkole górniczej.
I work in a mining school.
In this sentence, 'górniczej' acts as an adjective modifying 'tradycji', indicating a tradition related to mining.
Historia górniczej tradycji tego miasta jest niezwykle bogata.
The history of this city's mining tradition is incredibly rich.
Here, 'górniczej' is an adjective describing 'produkcji', denoting that the production pertains to mining activities.