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14610:
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Boleite - $26
ex Willard Perkin
Santa Rosalía, Boleo District, Mun. de
Mulegé, Baja California Sur, Mexico
0.4 x 0.4 x 0.4 cm (0.2 x 0.2 x 0.2 cm)
Specimen status: Available Click
here to order
A classic, opaque and deep blue boleite
cube mounted on a thin plastic rod in a Perky box. Willard Perkin is credited with
having introduced small, plastic, snap-top boxes for thumbnail specimen
(aka 'Perky boxes'). His specimens are identified by a meticulous small
label across the front of the base. This particular Perky
thumbnail is unusual because it bears a Perky Boxes label on the
bottom. I've only every seen about a dozen Perkin thumbnails with this
bottom label. The box cap was removed to aid photography; the cap will
be
included with the specimen.
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14611:
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Aragonite and Gypsum
Santa Eulalia District, Mun. de Aquiles Serdán,
Chihuahua, Mexico
7.9 x 6.3 x 4.8 cm (3.1 x 2.5 x 1.9 inches)
Specimen status: Sold
A blanket of silky, translucent to opaque
aragonite covers a crystalline calcite core. Reminds me of exploding
snow (in this case, somewhat dirty snow), or perhaps a coral growth.
This one has a bit of gypsum as well. No damage.
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4346:
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Fluorite - $14
Elmwood Mine, Carthage, Smith County, Tennessee
4.9 x 3.2 x 2.4 cm (1.9 x 1.3 x 0.9 inches)
Specimen status: Available Click
here to order
What may appear at first glance to be an
unremarkable fluorite crystal fragment is in fact a nearly complete
crystal, heavily etched. The etch patterns have given portions of the
crystal a stepped appearance, while the remaining original corner is
highly transparent and lightly purple. A small cleave area along one
face where removed from matrix, and a few small chips are seen, but no
significant damage. An Elmwood oddity.
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8473:
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Albite, Chalcopyrite, and Muscovite - $50
near Cruzeiro
Mine, São José da Safira, Minas Gerais, Brazil
10.6 x 7.2 x 6.2 cm (4.2 x 2.8 x 2.4 inches)
Specimen status: Available Click
here to order
Parallel albite pillars host a dusting of
tiny chalcopyrite and muscovite crystals. No damage or contact points;
this appears to be a floater. Aesthetic,
sculptural, and unusual.
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8515:
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Fluorite and Quartz - $85
Stak Nala, Haramosh Mountains, Skardu District,
Baltistan, Gilgit-Baltistan, Pakistan
9.5 x 9.1 x 8.1 cm (3.7 x 3.6 x 3.2 inches)
Specimen status: Available Click
here to order
A 7.2 cm wide, deep green fluorite
crystal group is snuggled next to an 8.8 cm terminated quartz crystal,
all on an albite/schorl/quartz matrix. The fluorites have a modified
tetrahedral crystal habit, with a colorless skin and minty green core.
The main quartz crystal has some damage (a large chip, and a saw mark
near the termination). Although the fluorite is a bit rough it is free
of damage, and above average in size for a pegmatite fluorite.
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9481:
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Heulandite and Quartz
New Street Quarries, Paterson, Passaic County, New
Jersey
10.5 x 8.1 x 5.6 cm (4.1 x 3.2 x 2 inches)
Specimen status: Sold
A quartz-covered matrix hosts a pearly,
pale yellow heulandite crystal cluster that is 2.0 cm across. Some of
the quartz crystals are red due to hematite inclusions. Except for a
few missing quartz terminations around the edges, the specimen is free
of damage.
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9965:
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Sphalerite and Calcite - $90
Elmwood Mine, Carthage, Smith County, Tennessee
12.7 x 9.2 x 5.6 cm (5.0 x 3.6 x 2.2 inches)
Specimen status: Available Click
here to order
A large and lustrous, well-crystallized
sphalerite specimen from the classic US sphalerite locality. The
calcite is incomplete, due to cleaves along the back. Could probably be
removed if desired. Displays quite well. One small bruise is noted,
otherwise free of damage.
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10502:
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Vanadinite - $14
Taouz, Er
Rachidia Province, Morocco
6.1 x 4.6 x 2.5 cm (2.4 x 1.8 x 1.0 inches)
Specimen status: Available Click
here to order
Translucent to opaque, orange-brown
vanadinite crystals on matrix. Individual crystals reach 5 mm. A few
small, scattered chips are seen, mostly around the periphery.
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11836:
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Hastingsite
Passaic Pit, Sterling Hill, Ogdensburg, Franklin
Mining District, Sussex County, New Jersey
8.0 x 8.0 x 4.2 cm (3.1 x 3.1 x 1.7 inches)
Specimen status: Sold
A cluster of well-defined hastingsite
crystals. The crystals have a pitted and slightly melted appearance.
Not a pretty specimen, but the crystals are exceptionally large for the
species. Hastingsite is an uncommon member of the amphibole group, with
the chemical formula {Na}{Ca}{Fe42+Fe3+}(Al2Si6O22)(OH)2.
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