Traditional exhibition of minerals and precious stones took place in Sofia

From April 11 until April 14, the National Museum Earth and Man in Sofia hosted the traditional spring exhibition of minerals and precious stones.

The visitors could see and buy processed precious stones such as ruby, topaz, emerald, etc. The display showed decorative stones and items made of these stones. The collectors could buy various minerals extracted from Bulgarian ore deposits such as galena, pyrites, quartz, calcite and others.

Adapted from BNR