Brazilianite is one of the most attractive gems out there, as the best stones truly do not resemble anything else. There are very few localities for gem material in the world, and Brazil remains the only country that produces fine stones with any consistency. This "Emerald" cut gem has a beautiful light greenish-yellow color and is only very very slightly included (it was very difficult to photograph but looks nice in person). I rarely have these stones available, so don't miss out on this one.
Since this new find of Sodalite hit the market a few years ago, I have been quite impressed with the amount of relatively clean stones out there. Sodalite is a very durable stone and that's why it is so popular among dealers and collectors alike. The gem variety of Sodalite is Hackmanite and it is tenebrescent which is the process by which a mineral changes daylight color after being exposed to SW Light. This stone is very tenebrescent and also shows a good LW/SW Fluorescence. The stone fluoresces orange under LW and light orange under SW. The Hackmanite will turn a slight lavender color after being exposed to prolonged SW light and then will return to normal color. This process is 100% repeatable and in no way hurts the stone. This gem is nearly colorless, but it's definitely a larger stone and one of the better quality gems in this size range that I've seen. The stone is only very slightly included, which is very difficult to find in this material, and make no mistake, this is a significant collectors gem. This material is retailing for HIGH numbers now across the board, and I recently saw some stones in Munich that were priced at $400 per carat.
Herderite is only found in a few localities around the world in gem quality crystals. It is a rare collector gem especially in larger size stones. I have seen quite a few faceted Herderites over the years, and they have some of the most unusual colors in the gem world. This stone is slightly included, and has a light silvery-lilac hue. It has a Rectangle cut, and is a lovely color for this material.
Axinite is typically considered a collector's stone. This particular gem is a lovely golden-brown / purple color gem with a Cushion cut. Axinite rarely forms in crystals that are gemmy or thick enough for faceting. It is indeed a very rare gem considering that rough is extremely difficult to find. To find a gem over 3 carats is very impressive. Axinite gems are rarely completely clean, so inclusions are accepted by most collectors and dealers. This stone is has some slight inclusions, but shows some trichroism as it does a change color when rotated in different directions. Axinite is actually hard enough that it can be worn in jewelry, though it is a bit brittle.
These are some of the most classic Apatites out there. This material is well known for its unique greenish-yellow color. This stone has an Emerald cut and only very very slight inclusions. These stones truly are a lot less common to find on the market today than they were 10-15 years ago and it seems that the material has "dried up". A great collector’s stone with good size, cutting, clarity and color.
Triplite is not rare in the aspect that it is found in various part of the world, but the large percentage of ALL Triplites around the world are essentially black and opaque, and not gem quality with a bright salmon orange color like this stone ! There was one find of these crystals and rough in Pakistan a few years ago, and they are simply some of the most impressive gems of any phosphate I have seen from any locality. One would be hard pressed to find many gems like this on the market, considering that all of these stones were quickly scooped up when they were made available. This particular stone is very attractive, extremely rare, slightly included, bright salmon orange color stone with an Oval cut. A beautiful stone of this amazingly rare material.
About two to three years ago there was a substantial discovery of what are some of the finest red, gem quality Chondrodites found in recent memory. The crystals were not terribly large, but they were fine quality, and showed a deep orange red hue within. This particular stone was cut from a broken crystal that we purchased two years ago. It is gem quality, make no mistake, but does have some slight inclusions. When viewed in the sunlight, the color is a very rich red with slight orange overtones. The stone has an Oval cut, and is simply a great example of this extremely rare and highly sought after material. I have seen some of these stones selling for up to $500 per carat overseas recently.
Smithsonite is a relatively rare gem when it comes to facetted stones. I have seen plenty of Smithsonite cabochons, but actual gemstones are not very common. This stone is nearly colorless (it has a very slight yellowish hue), and is slightly "hazy" which is common even in good Smithsonite gems. The stone has an Oval cut, and is a very good size, attractive gem of this material. One does not encounter many of these gems on the market, and no rare gem collection is complete without a good Tsumeb Smithsonite. This stone is one of a handful Smithsonites that I have had to offer in the last few years.
Within the last few years, the locality at Zagi Mountain in Pakistan has provided collectors with some of the finest quality and amazingly gemmy Bastnäsite specimens. Typically the species forms in relatively thin blades and was not suitable enough for cutting stones. The new find in Pakistan has produced some very thick crystals for the species, many of which were of gem quality. The stones cut from some of these crystals are extremely rare and highly prized by collectors. They often have some sort of inclusions, and completely eye clean gems are very hard to find. This particular stone is a beautiful, rich golden orange color gem with an Elongated Emerald cut. The stone is slightly included, but completely clean stones of this material are exceedingly rare. This stone would fill a spot in any rare gem collection, and considering that this material is not coming out anymore, this is a great opportunity for a rare stone collector to add one of these hard to find gems to their collection.
Sometimes this species is referred to as "Sphene", but it is an outdated name and the correct name is Titanite, though both are accepted in the gem and mineral world. It seems to me that more often it is referred to as "Sphene" in the gem world and Titanite in the mineral world. Sphene is from the Greek word sphenos which means wedge in allusion to the characteristic wedge-shaped crystals. Titanite alludes to the dark brown to black color of the original specimens which were very rich in Titanium. Faceted Sphene is a wonderful gemstone, rich in fire and with superb intense colors, and typically shows double refraction. This is a great size stone for the material. It is from a fairly new find in Afghanistan that has produced some impressive stones. It has a wonderful greenish-gold color, with only very slight inclusions and a nice Oval cut. Titanite has one of the highest refractive indices of almost any gem in the world. This gem reflects a variety of colors from red to orange to yellow.
GEM: 1.7 x 1.4 x 0.9 cm (9.19 carats) A superb miniature, with two very 3-dimensional crystals intergrown, and complete. When backlit strongly this cluster GLOWS with the same deep cherry red color that you see in this unusually large and clean cut gemstone. I paid $3000 for this large stone of SUPER quality, to make a wonderful set. I think the specimen is a value, as well. Together, they complement nicely in size.
A very rare, fine, gem cut from type locality material collected at Washington Pass sometime after the original find. It is one of the finest cut stones, surely - certainly the best tha tany of my contacts have seen. it is a large, very nicely colored, pink/lavender oval zektzerite that is 1.62 carats and 11.1 x 6 mm size. i obtained a small stash collected about 12 years ago from a private collector. the best of his crystals have more color than any i have seen in the past which came from the famous find by Jack Zektzer. Only one was really a cutter , and it turned out well.
This is a very unique variety of Quartz, and this stone is from the finest occurrence in the world. Ametrine is a naturally occurring purple and yellow bi-color variety that is formed by a unique twin law ("Brazil Law Twinning") where two separate individually colored crystals are intergrown to form an alternating "radiation" pattern of purple and yellow triangles when viewed down the c axis. The two colors are oriented to cut the bicolor gemstones, This gem is a unique, one-of-a-kind, superb quality, well cut, 20/80 purple/yellow bicolor, virtually eye clean Quantum Square Burst cut gemstone. This is a truly beautiful stone and when Ametrine is well cut, it looks amazing. It has come to my attention that the mine is no longer in production of this material and the market has quickly "dried up". Don't miss this opportunity to own a unique, colorful, large, naturally occurring gemstone.
Sphalerites come in a wide variety of colors, but they are the most difficult to obtain in green gems. The Mogilata mine is one of the few mines in the world that is still producing good green gem quality Sphalerite. The stones are highly prized by collectors and dealers for having some of the finest green hue of any Sphalerite in the world. I’m told by my European friends that the top green Bulgarian gems sell for $400 per carat in Europe. They are becoming increasingly difficult to find these days and the best rough is already spoken for and the stones are presold before they’re even cut. This stone has superb green color for this mine, with only slight inclusions, and a lovely Eye of God cut. The stone was cut by Brett Kosnar, and is one of the best green Sphalerites we’ve had for sale from this locality.
Taaffeite is one of the great rare gems out there. The species was actually identified from faceted stones that were thought to be mauve color Spinels, but show double refraction, which cannot occur in isometric mineral such as Spinel. Taaffeite has recently been split into two species, i.e., Magnesiotaaffeite and Ferrotaaffeite. The more commonly known gem Taaffeites are found at the type locality at Ratnapura in Sri Lanka, and are among the most highly sought after and valuable gems coming out of Asia. Stones are not often found over 1 carat. This stone is a beautiful, very slightly included, pale lavender color stone with a Step Oval cut. These are definitely some of the rarest and most desirable of collector's stones around, and this is a fine example of a great gem Taaffeite.
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