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Mineral Specimens with Grossular
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3.4 x 2.9 x 1.9 cm. From the exciting new find in Mali, three sharp yellow garnets of textbook form. You have probably seen these Mali garnets before, but this is truly the absolute TOP in quality! VERY few have this glassy luster! From a knowledgeable collector: “Ugrandites are a rare intermediate between andradite and grossular. In other words, Mali Garnet. This series leans toward the andradite end, in my opinion. What seems to be unique is the very strong presence of chromium. I’m surprised that the body color isn’t more green. I imagine that is due to the presence of color killing iron. I thought this might interest you.” Well, that is more than what we knew – we had heard that they were under study to see if they were demantoid var. topazolite garnet. Anyway, this is a cluster of three crystals, again with the very rare (for these) GLASSY luster. I really like the unusual color of these - this is certainly a very atypical color for garnets, and beautiful in its own way.
4.5 x 3.1 x 1.2 cm. Gemmy and lustrous orange grossular variety hessonite garnets cover both sides of this EXCELLENT and SHOWY plate. This fine piece comes from an uncommon and one of the more UNIQUE locality names, that I have seen - The Teenage Crush, Washington. Choice material from the Scott Williams and George Elling Collections.
4.9 x 3.4 x 2.9 cm. From the exciting recent find in Mali, this specimen represents the very TOP- with rare MATRIX association, and high luster on the large crystals. From a knowledgeable collector: “Ugrandites are a rare intermediate between andradite and grossular. In other words, Mali Garnet. This series leans toward the andradite end, in my opinion. What seems to be unique is the very strong presence of chromium. I’m surprised that the body color isn’t more green. I imagine that is due to the presence of color killing iron. I thought this might interest you.” Well, that is more than what we knew – we had heard that they were under study to see if they were demantoid var. topazolite garnet. Anyway, an exceptional specimen from this find. The crystals measure to 2.2 cm across - and again, matrix specimens are exceedingly rare.
3.4 x 2.1 x 1.6 cm. From the exciting new find in Mali, three sharp yellow garnets of textbook form. From a knowledgeable collector: “Ugrandites are a rare intermediate between andradite and grossular. In other words, Mali Garnet. This series leans toward the andradite end, in my opinion. What seems to be unique is the very strong presence of chromium. I’m surprised that the body color isn’t more green. I imagine that is due to the presence of color killing iron. I thought this might interest you.” Well, that is more than what we knew – we had heard that they were under study to see if they were demantoid var. topazolite garnet. Anyhow, this is one of a few cherry-picked specimens that are head and shoulders above the rest, for its luster and sharpness; it consists of two intergrown crystals.
3.4 x 2.9 x 2.7 cm. A big, lustrous, coffee-colored garnet from a locality that produces grossulars in a variety of colors, including light olive and pink. This is actually two intergrown crystals. The contact on the bottom shows that the garnets have a translucent olive-green core.
4.9 x 4.5 x 4.2 cm. This is not only a mind-blowing huge pink garnet - it has the added distinction of having a 2 cm vesuvianite crystal embedded in one of its faces! The luster is sensational, and the color is a beautiful pink - it is actually slightly TRANSLUCENT, too! There are a few contacts, as is usual for these, but for its size it is in great condition. An old specimen. Ex. Carl Stentz collection.
2.8 x 1.7 x 1.6 cm, 2.4 x 2.4 x 1.9 cm, 1.9 x 1.9 x 1.9 cm. From the exciting finds of last year in Mali, three sharp yellow garnets of textbook form. From a collector who commented on these last time we posted a few: “Ugrandites are a rare intermediate between andradite and grossular. In other words, Mali Garnet. This series leans toward the andradite end, in my opinion. What seems to be unique is the very strong presence of chromium. I am surprised that the body color is not more green. I imagine that is due to the presence of color killing iron. I thought this might interest you.” Well, that is more than what we knew – we had heard that they were under study to see if they were demantoid var. topazolite garnet.
2.4 x 1.9 x 1.4 cm. A big, lustrous and mostly gemmy crystal of one of the most prized gemstones around - the ultra-rare tsavorite variety of garnet. This large crystal has fine green color and sharp, glassy faces. Though it is not a gem crystal, it has fine transparency. For a collector, rather than a cutter, this is a rare chance to get a fine big crystal of tsavorite.
6.3 x 4.7 x 4.6 cm. When I first saw this labeled as spessartine garnet with vesuvianite, I thought something was odd from the habits and color of the combination. I took it to show a number of European collectors to confirm its oddity, since I had never had a similar specimen before, and the consensus was that this is a superb example of a rare variety of magnesium-rich epidote from a famous find in the 1970s. This is an important locality specimen, but it’s also a superb piece aesthetically for the contrast of crystal forms and colors. The largest Mg-epidote is 3 cm tall and the largest garnet is 2 cm tall, both finely crystallized. While there are some little spots of damage or contact, the major crystals are in good shape and the piece overall presents well enough that two very serious collectors owned it anyways, even without knowing (as I did not!) exactly how rare and desirable the piece was with the full identification now on it. From the Marty Zinn collection to Ed David through purchase.
3.3 x 2.7 x 1.9 cm, 2.5 x 2.3 x 2.2 cm, 1.4 x 1.2 x 1.0 cm. More garnet varietals out of the Bill Larson collection - this, a set of 3 California grossulars that look for all the world like a classroom model! Their luster and color I think adds to it - they really do look like wooden models! Just so ultra-cool and eye-catching in person and the kind of thing that amazes non-rock people when they are told they are natural.
6.7 x 6.1 x 3.2 cm. A spectacularly good specimen of RUSSIAN garnet, very uncommon to see for sale, out of the collection of Bill Larson. The close-up shows you just how sharp this superb crystal is, and it is LARGE, too: 2 centimeters from tip to tip! There are some smaller accenting crystals as well. On the back of the matrix are three fine crystals, smaller than the big one on the display face but excellent as well.
5.5 x 4.3 x 4.3 cm. A large, very rich specimen of Washington grossular garnet, from the collection of Bill Larson. Washington grossulars are hard to obtain now, and this old-timer has literally DOZENS of flashing, lustrous crystals all over it. They measure to 0.6 cm, and they are really GEMMY, with the beautiful coffee color characteristic for this locality.
3.7 x 3.4 x 2.8 cm. A fine specimen from the garnet collection of Bill Larson - this, a cluster of lustrous, champagne-colored, gemmy garnets from a little-known Mexican locality on the Baja California peninsula. The crystals measure to about 0.6 cm.
3.4 x 2.5 x 1.4 cm. Pink grossulars from Mexico RARELY are this red and translucent - the vast majority are more pink and opaque. So this one really stands out, even though it has a bit of natural contacting. The other thing remarkable about it is how it sits perfectly and completely exposed atop a bit of matrix, so it is unusually aesthetic.
4.4 x 4.4 x 4.2 cm. This is a huge crystal of vesuvianite from Lake Jaco, with the most characteristic color from there (olive yellow) and the typical blocky form. On its lustrous faces, you can see that pale grossular garnets have formed. Lake Jaco is known for both of these, but not typically together, so this is an interesting association specimen.
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Rob Lavinsky, rob@irocks.com
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share specimen![Grossular from Sibinndi, Nioro du Sahel Circle, Kayes Region, Mali [db_pics/mdpics/MD-136098a.jpg]](db_pics/mdpics/MD-136098a.jpg)
![Grossular from Teenage Crush Claim, Vesper Peak, Sultan Basin, Sultan District, Snohomish Co., Washington, USA [db_pics/mdpics/MD-136214a.jpg]](db_pics/mdpics/MD-136214a.jpg)
![Grossular from Teenage Crush Claim, Vesper Peak, Sultan Basin, Sultan District, Snohomish Co., Washington, USA [db_pics/mdpics/MD-136214b.jpg]](db_pics/mdpics/MD-136214b.jpg)
![Grossular from Sibinndi, Nioro du Sahel Circle, Kayes Region, Mali [db_pics/mdpics/MD-137781a.jpg]](db_pics/mdpics/MD-137781a.jpg)
![Grossular from Sibinndi, Nioro du Sahel Circle, Kayes Region, Mali [db_pics/mdpics/MD-137781b.jpg]](db_pics/mdpics/MD-137781b.jpg)
![Grossular from Sibinndi, Nioro du Sahel Circle, Kayes Region, Mali [db_pics/mdpics/MD-142244a.jpg]](db_pics/mdpics/MD-142244a.jpg)
![Grossular from Lake Jaco, Sierra de la Cruz, Mun. de Sierra Mojada, Coahuila, Mexico [db_pics/mdpics/MD-145969a.jpg]](db_pics/mdpics/MD-145969a.jpg)
![Grossular, Vesuvianite from Lake Jaco, Sierra de la Cruz, Mun. de Sierra Mojada, Coahuila, Mexico [db_pics/mdpics/MD-146929a.jpg]](db_pics/mdpics/MD-146929a.jpg)
![Grossular from Sibinndi, Nioro du Sahel Circle, Kayes Region, Mali [db_pics/mdpics/MD-151576a.jpg]](db_pics/mdpics/MD-151576a.jpg)
![Grossular (Var: Tsavorite) from Merelani Hills (Mererani), Lelatema Mts, Arusha Region, Tanzania [db_pics/mdpics/MD-159300a.jpg]](db_pics/mdpics/MD-159300a.jpg)
![Grossular (Var: Hessonite), Epidote from Falin lake, Usseglio, Viù Valley, Lanzo Valley, Sesia-Lanzo zone, Torino Province, Piedmont, Italy [db_pics/mdpics/MD-160211a.jpg]](db_pics/mdpics/MD-160211a.jpg)
![Grossular from Mason Valley Gem Claim, Mason Valley, Banner District, San Diego Co., California, USA [db_pics/mdpics/MD-160742a.jpg]](db_pics/mdpics/MD-160742a.jpg)
![Grossular from Vilyui River Basin (Vilui River Basin; Wilui River Basin), Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia [db_pics/mdpics/MD-162481a.jpg]](db_pics/mdpics/MD-162481a.jpg)
![Grossular from Vesper Peak, Sultan Basin, Sultan District, Snohomish Co., Washington, USA [db_pics/mdpics/MD-162779a.jpg]](db_pics/mdpics/MD-162779a.jpg)
![Grossular from Los Gavilanes, Mun. de Tecáte, Baja California Norte, Mexico [db_pics/mdpics/MD-162781a.jpg]](db_pics/mdpics/MD-162781a.jpg)
![Grossular from Sierra de la Cruz, Mun. de Sierra Mojada, Coahuila, Mexico [db_pics/mdpics/MD-165755a.jpg]](db_pics/mdpics/MD-165755a.jpg)
![Grossular from Sierra de la Cruz, Mun. de Sierra Mojada, Coahuila, Mexico [db_pics/mdpics/MD-165755b.jpg]](db_pics/mdpics/MD-165755b.jpg)
![Grossular, Vesuvianite from Lake Jaco, Sierra de la Cruz, Mun. de Sierra Mojada, Coahuila, Mexico [db_pics/mdpics/MD-166778a.jpg]](db_pics/mdpics/MD-166778a.jpg)
![Grossular, Vesuvianite from Lake Jaco, Sierra de la Cruz, Mun. de Sierra Mojada, Coahuila, Mexico [db_pics/mdpics/MD-166778b.jpg]](db_pics/mdpics/MD-166778b.jpg)