Mramor, Tuzla
Mramor is a village in the municipality of Tuzla, Tuzla Canton, Bosnia and Herzegovina. It is located between Tuzla and Srebrenik.
It was the location of the 1990 Dobrnja-Jug mine disaster, where 180 miners died.
Demographics
According to the 2013 census, its population was 188.| Ethnicity | Number | Percentage |
| Croats | 113 | 60.1% |
| Bosniaks | 62 | 33.0% |
| Serbs | 8 | 4.3% |
| other/undeclared | 5 | 2.7% |
| Total | 188 | 100% |