Deaccessions from the Philadelphia Academy of Sciences

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PAS-126 - Fillowite - SOLD
Sullivan Mine, Sullivan, New Hampshire, USA
miniature, 4.8 x 3.9 x 1.5 cm

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An exceptionally rich example of a very rare manganese phosphate, that I personally had never even seen. However, I am told by those who know more than I do, that this is a very impressive piece, the best seen on the market certainly and better than a few major private holdings have (one source told me , after thinking about museum holdings he had seen, this may be the richest specimen known). The crystallization is both rich and frankly aesthetic, all things considered. It is on the front and the back. From what research I could do, the locality seems to have not yet been publicly reported to produce this species, although with the old Smithsonian label, I would tend to believe it. Its hard to make this stuff up....and there would have simply been no motive at the time. Exchanged from the Smithsonian to the Academy in the 1920s.

PAS-127 - Galena - SOLD
Galena, Jo Daviess County, Illinois, USA
miniature, 4.3 x 3.8 x 3.2 cm

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A nice-sized, SHARP galena crystal of some significance because it is from the OLD lead district in northern Illinois, predating the discovery of the more abundant Missouri lead belts mined in the 1900s. This is certainly from the 1800s or early 1900s. The number painted upon the crystal's backside matches the label (whichnotes the presence of very small associations on the back, as well) Valid, antique crystals of galena, from Galena, are super-rare and this is not only a valid one, but a huge crystal in good condition for the locality. Some minor damage but all things considered, and its age probably prior to 1900, its not bad at all! I have not brightened it chemically by cleaning it, to preserve the antique look.

PAS-128 - Almandine Garnet in Muscovite - SOLD
Spruce Pine, Avery County, North Carolina, USA
small cabinet, 9.1 x 7.3 x 0.1 cm

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A beautiful "windowpane" muscovite cleavage with bright, gemmy, sparkling red garnets sitting inside! Note it is like a sheet of plastic...you can see through to the stand behind it. Classic old material from this important historic locality. While mined into the later 1900s, most specimens of later years were ugly and dull incomparison to the bright association here.

PAS-129 - Jarosite & Natrojarosite (Utahite) - SOLD
Centennial Eureka Mine, Tintic District, East Tintic Mts, Juab Co., Utah, USA
small cabinet, 9.4 x 6.2 x 2.5 cm

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"Utahite" came from only a small find in Utah, and this is a very old specimen from the type locality, featuring minute blue microcrystals on matrix with malachite, barite, and gods know what else - probably a whole schmear of microcrystallized rare copper minerals here! To confuse matters more, the name was discredited and this material was then shown to be jarosite/natrojarosite; and a NEW species named Utahite was then christened afterwards. This old "utahite" was a combination of jarosite or natrojarosite (this is way too old to be the newer species utahite). I don't know what the hell all this copper-rich stuff is, but it is really interesting as a historic specimen and from a great locality, and worth further study to somebody with the resources to pursue analysis.

PAS-131 - Danalite - SOLD
Rockport, Cape Ann, Essex Co., Massachusetts (TYPE LOCALITY)
small cabinet, 7.2 x 4.8 x 3.2 cm

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From the TYPE LOCALITY where it was first noted in 1866 during the Civil War, this is an OUTSTANDING, aesthetic, intensely colored danalite crystal, named after the great mineralogist. The crystal is approx. 2 cm tall. Danalite turns out to be a rare member of the helvite group, seldom crystallizing and most often found as masses in rock. Here we have a superb 3-dimensional crystal perched on matrix with amazonite feldspar and cryophilite, in quartz. According to MINDAT, cryophilite has been discredited by the IMA Mica subcommittee (betcha didn't know the world had such an important body of governors...). It is now considered on odd variety of Zinnwaldite, Fe-bearing trilithionite, or Fe-bearing polylithionite (again, according to MINDAT). The danalite crystal is 3-D, attractively displayed, and overall we hav ehere both a significant and attractive display specimen of something so rare and historic that most of us will probably never see again.

PAS-113 - Nantokite - SOLD
Carmen Bajo Mine, Nantoko, Copiap� Province, Atacama Region, Chile (TYPE LOCALITY)
miniature, 5.2 x 4.3 x 2.3 cm

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A VERY rare example of a mineral I had not heard of until now, Copper Chloride pure and simple : CuCl. This is according to MINDAT a rare anhydrous copper chloride, known only from arid environments in its natural form. The description goes on to say that it is "Colourless and transparent when fresh. Unstable in humid air, and transforms slowly into greenish secondary Cu-hydroxchlorides" which overlay the natokite now, on its surface. However the crystal cores should remain nantokite, and there should also be material inside this rather large study specimen. From the type locality!

PAS-169 - Jarosite - SOLD
Huanuni mine, Huanuni, Dalence Province, Oruro Department, Bolivia
cabinet, 13.1 x 9.6 x 7.4 cm

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This rich piece has protected vugs all over it with sharp , lustrous crystals of jarosite. One of two extremely rare specimens of jarosite, a complex iron sulfate, from the world's richest cassiterite-mining deposit. This is one of two specimens apparently found together and retrieved during (going by the number system) the 3rd or 4th Vaux expedition to Bolivia in the late 1930s. Comes with original label from the Vaux collection at the Academy.

PAS-170 - Jarosite - SOLD
Huanuni mine, Huanuni, Dalence Province, Oruro Department, Bolivia
small cabinet, 8.6 x 6.4 x 4.1 cm

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This rich piece has protected vugs all over it with sharp , lustrous crystals of jarosite. One of two extremely rare specimens of jarosite, a complex iron sulfate, from the world's richest cassiterite-mining deposit. This is one of two specimens apparently found together and retrieved during (going by the number system) the 3rd or 4th Vaux expedition to Bolivia in the late 1930s. Comes with a color copy of the one original label which came with both pieces, from the Vaux collection at the Academy.

PAS-157 - Umangite, Clausthalite, & friends - SOLD
Sierra de Cacheuta, Mendoza, Argentina
miniature, 3.5 x 3.1 x 1.4 cm

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A slightly less rich example than the above specimen, but clearly collected at the same time and in fact with the same number painted upon them. There is a lot more than clausthalite in here! I am told that if you have purple (and you do, visible, here!), you have umangite; and its a good bet there is klockmannite as well, and potentially all kinds of other good things. This specimen also contains Copper selenides because of the green secondaries. The non-metallic blue on there is likely chalcomenite, in fact. These specimens were presented to the academy by Casimiro Domeyko, who did much work on the rare minerals of Chile and Argentina. This specimen has more silvery metallic material running along one face, a color seemingly absent in the specimen below. Note these are for sale "as is" with the ID as "Clausthalite and friends"...I have not analysed them.

PAS-158 - Bismuth nugget - SOLD
Chorolque Mine, Atocha-Quechisla District, Sud Chichas Province, Potos� Department, Bolivia
miniature, 4.2 x 3.6 x 2.3 cm

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Bismuth nugget from Chorolque Mine, Atocha-Quechisla District, Sud Chichas Province, Potos� Department, Bolivia [db_pics/pics/pas-158a.jpg]

Bismuth nugget from Chorolque Mine, Atocha-Quechisla District, Sud Chichas Province, Potos� Department, Bolivia [db_pics/pics/pas-158a.jpg]

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Bismuth nugget from Chorolque Mine, Atocha-Quechisla District, Sud Chichas Province, Potos� Department, Bolivia [db_pics/pics/pas-158b.jpg]

Bismuth nugget from Chorolque Mine, Atocha-Quechisla District, Sud Chichas Province, Potos� Department, Bolivia [db_pics/pics/pas-158b.jpg]

A really neat, hefty Bismuth nugget! Large bismuth nuggets are extremely uncommon from anywhere, and they were noted historically at this important and classic locale. These were collected on the 4th Vaux-Academy expedition, 1929-1930. MASS = 122 grams . This specimen comes with a color copy of the label to PAS-160.

PAS-159 - Bismuth nugget - SOLD
Chorolque Mine, Atocha-Quechisla District, Sud Chichas Province, Potos� Department, Bolivia
miniature, 4.0 x 3.7 x 2.5 cm

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Bismuth nugget from Chorolque Mine, Atocha-Quechisla District, Sud Chichas Province, Potos� Department, Bolivia [db_pics/pics/pas-159a.jpg]

Bismuth nugget from Chorolque Mine, Atocha-Quechisla District, Sud Chichas Province, Potos� Department, Bolivia [db_pics/pics/pas-159a.jpg]

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Bismuth nugget from Chorolque Mine, Atocha-Quechisla District, Sud Chichas Province, Potos� Department, Bolivia [db_pics/pics/pas-159b.jpg]

Bismuth nugget from Chorolque Mine, Atocha-Quechisla District, Sud Chichas Province, Potos� Department, Bolivia [db_pics/pics/pas-159b.jpg]

A really neat, hefty Bismuth nugget! Large bismuth nuggets are extremely uncommon from anywhere, and they were noted historically at this important and classic locale. These were collected on the 4th Vaux-Academy expedition, 1929-1930. MASS = 162 grams (SHOCKINGLY HEAVY when this little thing is put in your hand...). This specimen comes with a color copy of the label to PAS-160.

PAS-160 - Bismuth nugget - SOLD
Chorolque Mine, Atocha-Quechisla District, Sud Chichas Province, Potos� Department, Bolivia
small cabinet, 6.0 x 4.7 x 2.3 cm

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Bismuth nugget from Chorolque Mine, Atocha-Quechisla District, Sud Chichas Province, Potos� Department, Bolivia [db_pics/pics/pas-160a.jpg]

Bismuth nugget from Chorolque Mine, Atocha-Quechisla District, Sud Chichas Province, Potos� Department, Bolivia [db_pics/pics/pas-160a.jpg]

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Bismuth nugget from Chorolque Mine, Atocha-Quechisla District, Sud Chichas Province, Potos� Department, Bolivia [db_pics/pics/pas-160b.jpg]

Bismuth nugget from Chorolque Mine, Atocha-Quechisla District, Sud Chichas Province, Potos� Department, Bolivia [db_pics/pics/pas-160b.jpg]

PAS-161 - Topaz - SOLD
Old Mine Park, Trumbull, Fairfield Co., Connecticut, USA
small cabinet, 7.0 x 5.8 x 5.5 cm

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Topaz from Old Mine Park, Trumbull, Fairfield Co., Connecticut, USA [db_pics/pics/pas-161a.jpg]

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Topaz from Old Mine Park, Trumbull, Fairfield Co., Connecticut, USA [db_pics/pics/pas-161b.jpg]

This is a VERY fine, display-quality topaz crystal (such as they form from here), from the first tungsten deposit discovered in North America. This color and style is actually typical of old material found in Connecticut in the early 1800s, and even prior into the late 1700s. Perhaps something is included within the topaz to give it the earthy look? This is a 5 cm crystal with a contact termination on one end. Ugly by some standards, but historic and loveable to others.

PAS-164 - Topaz - SOLD
Old Mine Park, Trumbull, Fairfield Co., Connecticut, USA
small cabinet, 8.0 x 7.6 x 4.9 cm

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Topaz from Old Mine Park, Trumbull, Fairfield Co., Connecticut, USA [db_pics/pics/pas-164a.jpg]

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Topaz from Old Mine Park, Trumbull, Fairfield Co., Connecticut, USA [db_pics/pics/pas-164b.jpg]

This is a VERY fine, display-quality topaz crystal (such as they form from here), from the first tungsten deposit discovered in North America. This color and style is actually typical of old material found in Connecticut in the early 1800s, and even prior into the late 1700s. Perhaps something is included within the topaz to give it the earthy look? this is a 4.5 cm-tall crystal with a SUPERB termination for this material, measuring about 2 x 2 cm atop. Ugly by some standards, but historic and loveable to others.

PAS-162 - Thulite - SOLD
Southern Pinenut Mountains, Red Canyon District, Douglas Co., Nevada, USA
small cabinet, 9.3 x 5.6 x 3.5 cm

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Thulite from Southern Pinenut Mountains, Red Canyon District, Douglas Co., Nevada, USA [db_pics/pics/pas-162a.jpg]

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Thulite from Southern Pinenut Mountains, Red Canyon District, Douglas Co., Nevada, USA [db_pics/pics/pas-162b.jpg]

Thulite turns out today to be known as a manganoan, pink variety of zoisite. It is still rather uncommon, and this piece has a large display face with crystalline thulite , particularly good on the right side.

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Rob Lavinsky, rob@irocks.com

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