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Mineral Specimens with Rhodonite
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4.4 x 2.9 x 2.4 cm. A gemmy, mostly euhedral, shimmering deep cherry-red rhodonite specimen from the new find in Brazil. There is contacting, but this remains a very showy, highly representative and excellent specimen for the species and it is not from Broken Hill. This piece is particularly rich, showy and has nice form.
6.9 x 3.5 x 2.7 cm. An old-time, fine rhodonite specimen from the Broken Hill Mine of Australia. A large vug is filled with gemmy and lustrous, rose-red rhodonite crystals to 1.3 cm in a matrix of solid, massive rhodonite. Ex. Anthony Fraser Collection.
5.0 x 3.0 x 2.7 cm. This is an outstanding specimen of gemmy, mostly euhedral, shimmering deep cherry-red rhodonite from the new find in Brazil. This superb, single crystal piece has two nearly complete and undamaged faces, the front and top.
5.7 x 1.8 x 1.7 cm. This is an outstanding columnar specimen of gemmy, euhedral, shimmering deep cherry-red rhodonite from the new find in Brazil. This superb, single crystal piece has two complete and undamaged faces, the front and top. The photo highlights these faces.
A colorful, large, and rich specimen of the classic Franklin rhodonite! This one is particularly desirable because the crystals, to 3 cm in size, are lustrous and have good color. These were not etched out with acid, as many specimens were (this dulls them and slightly etches the crystals). Although some crystals here have damage, the major ones are intact and well-displayed. I chose not to remove the damaged ones because they add color to the specimen and with something this large and old, dont really detract in this case. 10 x 9 x 7 cm
An example of the species Cahnite, named after oldtime dealer Lazard Cahn. The species is known from Franklin in perhaps just a few dozen specimens and is considered one of the most difficult Franklin species to obtain. 5.5 x 3.5 x 2.5 cm
13.4 x 13.2 x 7.8 cm. A huge, shockingly complete and pristine, 3-dimensional specimen of rhodonite from a famous find in 1998. The style of small, densely packed blades is unique to that occurrence, to this day. It is rather large at 1095 grams, and features sharp lathe-like bladed crystals to 6mm.
7.9 x 5.0 x 3.9 cm. A large, rich specimen of solid rhodonite crystals, from an old collection in Italy: The large rhodonite in the top apex is 3 cm, doubly terminated, tip to tip. All the major crystals are well terminated, though the peripheral crystals show some contact or damage. This is an old specimen.
12.4 x 9.1 x 5.5 cm. A large, matrix rhodonite with sharp red crystals in contrasting stark white calcite matrix. The little black crystals are franklinite. The large rhodonite in the middle is 6.5 cm, doubly terminated, tip to tip (though it has a growth interruption in the midpoint). These crystals are sharply terminated, and of high quality, thus. This is an old specimen. Ex. Harvard Museum to Paterson Museum Collection, to George Elling Collection.
16.4 x 10.0 x 8.4 cm. At 1600 grams, this is a fairly good-sized, impressively hefty specimen. This piece features fat willemite crystals to 7 cm tall, with a few franklinites perched upon them. They are ensconced in calcite (fluorescent red) and rhodonite matrix. The specimen was long on display in the Paterson Museum, which only let it trade out as part of an exchange for some extremely rare and valuable New Jersey specimens from the 1800s...or this never would have left the museum. A superb specimen. Ex. George Elling Collection.
4.0 x 2.7 x 2.7 cm. A beautiful "corsage" of lustrous, rose-red rhodonite blades from recent finds at the San Martin Mine of Peru, which is near the Chiurucu Prospect.
10.1 x 9.5 x 6.0 cm. Rhodonite has been coming out of this old manganese mine for 3 years now in a trickle of specimen. Rarely, though, do they come on matrix. This large colorful plate features dozens of crystals to 1.25 cm. Most are broken, but some are not, and overall it is a nice field of color and a good representative study specimen from this find.
7.8 x 5.5 x 5.3 cm. A very impressive specimen of the rare Na-Mn Silicate Kozulite. Normally, any crystals are in the mm size range, but these Kozulite crystals are up to 7mm. Most are as cleavage faces or embedded crystal portions. And it is not just one crystal - they are in two rich veins that that completely span the specimen. A small amount of pink Rhodonite contrasts nicely. Ex. Charlie Key.
8.1 x 5.3 x 4.4 cm. A very impressive and attractive specimen of the rare calcium arsenic borate Cahnite from the Franklin mine. The piece comes from the Richard Kosnar and Frank Edwards collections, and retains the Frank Edwards label dating the piece to 1967. Cahnite was named after noted mineral dealer, Lazard Cahnite, and Franklin is the type locality for the species. The specimen hosts small chalk-white Cahnite crystals on beautifully contrasting pink Rhodonite. The closeup photo shows that the Cahnite crystals are terminated, and some of the Rhodonite crystals are remarkably gemmy and rich in color. The largest group of Cahnite crystals measures 1.1 cm across.
A fine rhodonite crystal, with sharp faces and good luster, though with a contact termination on one end. These gem rhodonites are THE classic material for the locality, and are extremely hard to come by today. They are generally 40-60 years old . 3.6 x 3.5 x 2.2 cm
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Rob Lavinsky, rob@irocks.com
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