Complex ores. The Fersman Mineralogical Museum of the Academy of Sciences of the USSR.
- Categories: Science & Technology
- Location: Moscow, Russia
- Event date: 01.12.1974
- Date published: 06.05.2010
- Author: Ignatovich
- Source: Sputnik
- Credit: Sputnik
- Original: А74-13586, 6х8 slide
- Media: JPEG, 5081x3342px, 8.7Mb