Lot of 5 Natural Lapis Lazuli Tumbled Pendant from Russia

Lot of 5 Natural tumbled Lapis Lazuli Pendant from Russia. The hoop is stainless steel (no allergies ).
Lapis Lazuli has natural, untreated color.
It is the birthstone of September.
Lapis Lazuli can contain gold pyrite. The color is fully natural.
Location: Malo-Bystrinskoe lazurite deposit, Malaya Bystraya River Valley, Slyudyanka, Lake Baikal area, Irkutsk Oblast, Russia
Weigh: each lot is about 17 Grams Combined
Average pendant size: 2.9 x 1.3 xc 0.8 Centimeters with bail
The lot you receive will be similar but not identical to the photo.

Interesting Fact: Lapis Lazuli, or short Lapis, is not a mineral but a rock consisting mainly of Lazurite, to which it owes the blue colour, Calcite and Pyrite.
In the 1980ies the Swiss Gilson company produced a material which was marketed as "Synthetic Lapis" although actually it was an imitation, containing constituents not present in genuine Lapis. Physical properties like specific gravity and refractive index also differed from the real thing. Gilson's "Lapis" was available in different qualities, with and without Pyrite.