Tourmaline is one of the most famous semi-precious gem in the world. The variety of colors is stunning. Some are very common as the black Schorl, but some varieties are highly prized by jewellery, some other come from only one source and are very scarse. The collection brings together most of members of the group, among them the rarest as Vanadium and USambara dravite, the Paraiba and the Fluor-Lidicoatite.
Dravite Usambara tourmaline from Umba Valley, Tanzania.
This tourmaline is so special that it became a reference, the « Usambara effect ». This stone contains chrome and vanadium. It’s color change is very special. With transmitted and direct cold light, the stone is green. With direct incandescent light, still green. But with transmitted incandescent, the stone suddenly becomes purplish red. A dichromatic color change. These stones became scarce.
This vanadium dravite tourmaline is an absolute rarity as only a view came to the market. Looking as a tsavorite. It comes from Southern Madagascar. Flawless!
A small « canary » yellow dravite from Africa, country undetermined. Yellow is one of the rare tourmaline color.
Cuprian Elbaïte, Paraiba Tourmaline is one of the most sought after gem in high jewelry. It was discovered In 1980′ in Paraiba state, Brazil. The Brazilian source is extinct. New deposit were found in Mozambique and Nigeria, but it didn’t influence prices.
The biggest stone is slightly included but the green hue color is amazing, and brilliance is good. It is untreated, and from the original Brazilian source, a great rarity.
The brilliant cut is very small but perfect hue brilliance and clarity, untreated. Even in such size it is now a rarity.
The two others in green and bluish hue are said from Brazil but could be from the more recent african source.
This very rare cuprian Elbaite comes from the Batalha mine, Brazil, the origin of the famous Paraiba Tourmaline. It presents unique and beautiful platelet copper inclusions.
Elbaïte rubellite. The rubellite is one of the sought after tourmaline in jewelry because it’s rare color is very close to ruby.
Fluor-Liddicoatite is one of the rarest tourmaline variety. This specimen comes from Fianarantosa, Madagascar.
Chrome tourmaline contains chrome and vanadium. it comes from East Africa and is one of most valuable in jewellery.