- One of the most notable stones excavated within the Orsk city line in the Mount Polkovnik is jasper. Orsk jasper is revered for its variety of natural designs and colors.
- ...https://orsk.ru/news/125121-v-leninskom-rayone-orska-obnovili-dosku-pocheta.
- Orsk (Rusça: Орск), Rusya'nın batı kesimindeki Orenburg Oblastı'nda bulunan bir şehir. Ural ve Or nehirlerinin birleştiği noktada yer alır.
- It was founded in 1735 as the fortress of Orenburg, which was moved downriver in 1743. Orsk is now a major industrial centre, with a large oil.