Infobase

History of discovery One of the main minerals of manganese - pyrolusite - was known in ancient times

Every jeweler, beginner or experienced, had a question in his head: how to melt gold in

How was flint formed? Scientists believe that flint appeared over sixty million years ago.

Today, many types of jewelry are produced from alloys with different compositions. They differ in sample. Modern

Author: Eva Tushenkina March 31, 2022 15:49 Community: Life stories Tags: borrower

Not to be confused with petroglyph or sculpture. The act of shaping stone materials Stone carver

Stone from the “High Hill” This soft mineral with an earthy sheen is common on our planet

Pearl jewelry began to be made in the distant past. Previously, earrings, necklaces and bracelets

Filigree (in Russian - scan, English filigree) is an openwork pattern or soldered onto metal

Sepiolite was first mentioned in sources dating back to the 4th century BC, as a mineral discovered on