This collection presents mostly « rare gems » or « collector gems », more often not used in jewellery because of rarity or hardness. Rarity is due to the quantity available, or a rare color, source or inclusion, or the difficulty to cut the rough into a faceted gem. Microphotographies are taken with an old Olympus microscope and an iphone. These gems are not for sale, but some extra specimens may be available. The collection is visible but stored in a specific location, so please contact me for an appointment.
The most famous member of the Beryl group are the emerald and the quamarine. Heliodor, Morganite, Pezzotaite are less known members. The rarest is the red Beryl, it’s only gem source being closed now. A classic enhancement for emeralds and red beryl is oiling. Almost 90-95% or colombian and african emeralds are oiled, but most of emeralds from Swat Valley in Pakistan) are not oiled.
The rarest of Beryl is the red variety also named Bixbite. It is one of the rarest gems in the world, and the mine in the Wah Wah mountain (Utah), it’s unique source, is now closed. As emeralds the Bixbite quite included, and most of time enhanced with oil treatment.
This chromium rich green beryl is an emerald coming from the most famous Colombian mine, Muzo. The color is more light green than the « investment » one but I definitively love the incredible neon glow. Under microscope we see the typical three-phase inclusions of Colombian emeralds. Clarity is honorable and the gem of course is treated with oil as 99% of all emeralds, but oiling is very acceptable.
Despite a nice deep color this emerald is very included, and oiled of course. It contains beautiful needle Tremolite inclusions indicating a Zambian origin. Combined to the presence of a bit of white quartz on the bottom, we can clearly establish that the gem comes from the Kagem mine, the second emerald source in the world. The gem also display a very rare cat’s exe effect! Until a very recent time it was considered that emeralds never show chatoyancy. it is probably due to the rarity of effect with Beryl and the fact that most of the gems are faceted (only a cabochon can reveal the effect).
ROugh: © collectorsedge.com
This small colombian emerald is said to come from the famous Muzo mine. It’s pale color is not attractive at all but the stone present a very rare cat’s eye effect. It is oiled.
Vorobyevite is a rare low-alkali « aquamarine » beryl from eo Darrah, Khash,and Kuran Wa Munjan districts in Badakhshan Province Afghanistan, with typical fibrous inclusions, some are two-phases.
A greenish yellow Heliodor from Ititnga, Minas Gerais, Brazil, with nice two-phases needle inclusions.
A very rare Pezzottaite from Andobovita, Madagascar. The color is typical with a strong pleochroism. It could seem a bit light in the salmon and cherry hue but, clarity is extremely good for the specie, which makes colors a bit lighter in these shades.
An extremely rare Aquamarine from Nasarawa state, Nigeria. Only less than one kilo was found in 2019, and it is now mined out.
Pleochroism is strong and color very deep for an untreated material.