Mineral

Mineral — a natural body with a defined chemical composition and crystalline structure. In 2017, during scientific and archaeological studies […]

Tungsten ores

Tungsten ore is a natural mineral-forming substance from which tungsten, a metal with unique properties, is extracted. In 2017, during

Tungsten ore is a natural mineral-forming substance from which tungsten, a metal with unique properties, is extracted. In 2017, during

The bracelet consists of a row of beads lined up on a thread. Dating: 1970. Material: amber. Technique: factory production.