Grossular - Gem crystals on Pectolite
stock #AX-32-066
Jeffrey Mine, Asbestos (now Val-des-Sources, Estrie,
Quebec,
Canada
4.3 x 2.5 x 2.3 CM (miniature)
price: $3300
Over several decades many fine Grossular have come from the Jeffrey Mine, but very few are truly gem crystals. This is an exceptionally fine and rare specimen with outstanding clarity, especially vivid color and top luster. The matrix is also much less common, a mass of Pectolite crystals that adds a contrast in texture and color. The Garnets are clear enough to see through to the matrix below. We have worked with many fine Jeffrey Garnets but very few of this quality ever. This is not at all typical of the deposit and is better in person as well. In excellent condition as seen with only some small internal cleaves not visible from most angles. Those would be fully invisible if this was not such a gem clear specimen. A excellent Garnet from anyplace and very fine for the Jeffrey Mine.
Vesuvianite - Gem crystal
stock #17.1-440
Jeffrey Mine, Asbestos (now Val-des-Sources, Estrie,
Quebec,
Canada
3.6 x 1.6 x 1.5 CM (miniature)
price: $3300
Pre Tucson
Vivid color and glassy faces with well-defined striations, this crystal is nearly all transparent and in perfect condition. The color is a bright asparagus green and has a purple to red core. In person the termination looks like a faceted gem, the luster is so bright it is hard to convey in photos. The Vesuvianites from Jeffrey Mine are unique in the world, famed for the colors and perfection. There were quite a few good ones found a few decades ago but very fine crystals like this were never common. Today we see very few and always at very high prices. This is from the F. Spertini collection (the mine geologist for whom Spertiniite is named) and is far better in person with a top display impact. No damage at all. Even on the bottom where it had been naturally broken inside the pocket long ago it is fully healed and re-crystalized. So technically this is doubly terminated and a floater.
Grossular with Heazlewoodite, Clinoclore and Gold!
stock #AX-16-431
Jeffrey Mine, Asbestos (now Val-des-Sources, Estrie,
Quebec,
Canada
5.3 x 3 x 3 CM (small cabinet/ large miniature)
price: $1500
Pre Tucson
An important and exotic piece from Jeffrey Mine, this has the deep green gemmy Grossular (so called Chrome Grossular) scattered on a matrix of Clinochlore etc. This alone is not so exotic or important, but both Heazlewoodite and native Gold are. While this is an attractive specimen of brilliant Garnets, the main interest (for some) is several very well-formed, sharp tiny crystals and clusters of Heazelwoodite. Seen with magnification these are textbook sharp, of course this is a rare mineral worldwide and very rare at Jeffrey. But what makes this even more important is only seen starting at 40 X magnification and best revealed at 80-100x. There are several tiny but distinct crystals of Gold some of which are elongated. Of course this is all micro sized but super-rare and impossible to find material from this world-class locality. Aside from the exciting micros, the overall esthetics of the bright green Grossular is attractive in its own right. Unfortunately our photographs at very low magnifications can not show the micros properly, but they may be rephotographed later on with specialized gear.
Pectolite - fine prismatic crystals
stock #AX-16-489
Jeffrey Mine, Asbestos (now Val-des-Sources, Estrie,
Quebec,
Canada
4.3 x 3.8 x 1.6 CM (miniature)
price: $520
Pre Tucson
An especially well-formed cluster of prismatic, doubly terminated crystals of Pectolite from the great find more than 25 years ago at the Jeffrey Mine of Quebec. Pectolite is only rarely found in prismatic crystals like this, it is typically in spheres or thin radiating needles. Worldwide only the Jeffrey Mine and the Poudrette Quarry (both in Quebec, Canada) ever produced crystals of this sort. Pectolite is a Calcium analog of Serandite, which is also a Canadian specialty. These crystals are in a jackstraw arrangement and transparent on edges, lustrous and have a light milky color. In excellent condition, the form is classic for the Jeffrey Mine, this style has never been found anyplace else on earth, and is a rare crystalized representation of this specie.
Grossular - gem crystals on matrix
stock #19.1-590
Jeffrey Mine, Asbestos (now Val-des-Sources, Estrie,
Quebec,
Canada
5.6 x 5.3 x 2.9 CM (cabinet)
price: $1900
Spring 23
Excellent gem clear Garnet crystals on contrasting matrix from the famed Jeffrey Mine. One of the most desirable (and rare) sorts of Grossular are the isolated crystals on dark matrix. These crystals are unusually well-isolated, the two that do touch are just barely in contact. Usually the crystals are tightly clustered and incomplete. The crystals themselves have the well-defined striations and lustrous faces that have made these world class Garnets and highly prized. Ex Martell collection (old collection number is painted on the underside). It is very unusual too that some Jeffrey Garnets are known to be fluorescent, usually just a few percent of the pink or green colors react. This piece however is also Fluorescent, a pink-red color which is very rare in the orange colored Garnets from Jeffrey or from anyplace in the world. Choice.
Grossular - frog-egg type
stock #17.1-462
Jeffrey Mine, Asbestos (now Val-des-Sources, Estrie,
Quebec,
Canada
4 x 3.5 x 2.2 CM (miniature)
price: $380
Spring 23
One of the most desirable and rare types of Grossular from the Jeffrey Mine are the frog-egg type. This specimen is a matrix of tiny Diopside crystals that hold several gem clear Garnets. Some of these are frog egg type with the colorless exterior and a bright green interior zone, much like frog eggs. The crystals are in excellent condition, very sharp and bright but small, with the largest just 2-3 MM in size. Despite the small size, the color is vivid enough to show the crystals to the naked eye. There is some fluorescence as well which is noted from some of the green Jeffrey Garnets. Very unusual to find a clean specimen in this price range now.
Vesuvianite - classic multi-color crystals
stock #14.1-046
Jeffrey Mine, Asbestos (now Val-des-Sources, Estrie,
Quebec,
Canada
4.1 x 2.3 x 1.5 CM (miniature)
price: $1750
Fall 22
Vesuvianite crystals with green outer areas and rose to violet middles. Very lustrous, glassy and well-formed, the crystals are in parallel position and show a cascade of termination faces. In outstanding condition, no visible damage, the crystals are translucent and will glow with backlighting. This looks fine on all sides. From a find over 20 years ago at the famed Jeffrey Mine which had been the source of the world's best Vesuvianite. The mine has been closed for many years and nothing will ever again be produced again. Even though Vesuvianite is not a very rare mineral, these vivid colors and forms do not exist anyplace else on earth. Fine specimens from these unique finds at Jeffrey have become very hard to find, especially in this quality and condition.
Grossular - frog-egg type, green cores
stock #22.1-435
Jeffrey Mine, Asbestos (now Val-des-Sources, Estrie,
Quebec,
Canada
4.2 x 2.6 x 2.3 CM (miniature)
price: $525
Fall 22
Glassy transparent pink color Garnets with emerald green cores on matrix. One of the great treasures found decades ago at the long gone Jeffrey Mine (Asbestos, Quebec) these are modern classics. Very hard to find now in any quality today on the market this piece has excellent luster and several clustered grossular crystals that are complete. Some edge damage exists but the important crystals are fine. Despite the "clustering" the individual crystals are still defined and very bright. For any suite of Garnets these are a must, this habit has never been found anyplace else on earth and there were not many found back then. "Frog-Egg" Garnets are usually very expensive, this piece offers very good value for cost.
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