Publication

In 2021, the mining company Rio Tinto planned to close the famous for its pink diamonds mine Argyle in Australia, but this sad event for most gemologists took place already in 2020.

Continuing our acquaintance with gemstones, which are rarely found in the form of faceted inserts, let us turn our attention to the minerals of the axinite group - mangan- and ferroaxinite.

The most widespread in the form of cut stones is synthetic rutile, which first entered the jewelry market as an inexpensive imitation of diamond.

The name pectolite is almost never found among the famous gemstones and is familiar only to mineralogists, gemologists or collectors.

Astrophyllite, due to its perfect cleavage and high fragility, is not very suitable for processing.