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Jeremy Zolan's Photo Gallery

PEA-021Spodumene LiAlSi2O6

00093550014947205564806.jpg
Brazil Lake pegmatite, Yarmouth Co., Nova Scotia, Canada

Field of View: 1 m

Spodumene megacrysts in the border zone of the LCT type pegmatite at Brazil Lake, Yarmouth Co., Nova Scotia. Here, Spodumene crystals are reported to up to 2m in length! LCT type pegmatites are not abundant in Nova Scotia.
[Note: FOV estimated by management.]

See: http://www.novascotia.ca/natr/meb/data/pubs/04re01/04re01_Kontak.pdf
for more info on this locality.
Photo ID: 356802     Uploaded by: Jeremy Zolan   View Count: 1077   Approval status: Public galleries    Type: Photo - 3456 x 2304 pixels (8.0 Mpix)

84V-TAQTopaz Al2(SiO4)(F,OH)2 , Margarite CaAl2(Al2Si2O10)(OH)2 , Margarodite

08297420014947205569209.jpg
Old Mine Park, Long Hill, Trumbull, Fairfield County, Connecticut, USA

Representative assembly of minerals associated with hydrothermal veins in the Old Mine Park area. The specimen was collected in the park and prepared using a diamond lapidary saw to expose the interior, which consists of yellowish massive topaz, grayish margarite, and gray-green margarodite assumedly replacing topaz. The rocks contained in the particular vein this sample was collected from are notably rich in strontium with respect to material collected in similar environments within the area. I recently did a small project for a geochemistry course I took investigating the heavy element composition of these unique hydrothermal rocks using a Rigaku XRF Spectrometer. Personally collected specimen.
Photo ID: 228809     Uploaded by: Jeremy Zolan   View Count: 1340   Approval status: Public galleries    Type: Photo - 3456 x 2304 pixels (8.0 Mpix)

PF7-0HRMargarodite, Margarite CaAl2(Al2Si2O10)(OH)2

05076820014947205572113.jpg
Old Mine Park, Long Hill, Trumbull, Fairfield County, Connecticut, USA

Polished specimen of margarodite pseudomorph after a large topaz crystal from one of the greisen-like (pseudogreisens, as I fondly call them) hydrothermal veins in Old Mine Park, Trumbull, Connecticut. The topaz crystal has been completely altered to a porcellaneous mixture of micas. It is interesting to note that XRF analyses of this material performed by the photographer have indicated that samples of pseudomorphosed topaz from Trumbull show detectable amounts of both Rb and Sr, while samples of topaz from hydrothermal veins that do not show signs of alteration only contain detectable amounts of Rb. I theorize that substitution of Ca for Sr in the margarite contained in this sample is responsible for its elevated strontium concentration. Since samples from other hydrothermal veins contain little margarite, they do not show elevated levels of Sr.

Photo ID: 227809     Uploaded by: Jeremy Zolan   View Count: 2508   Approval status: Public galleries    Type: Photo - 3456 x 2304 pixels (8.0 Mpix)

7LY-W17Orthoclase K(AlSi3O8)

02548790014947205582726.jpg
Greenwich, Fairfield County, Connecticut, USA

This thumbnail specimen of orthoclase is not only a nice example for the species from Connecticut, but also from quite an odd location- a small alpine-type vein that was exposed in a small construction site right in the center of downtown Greenwich! Personally Collected.

Size: 2.2cm x 2.1cm
Copyright: © 2008 Jeremy Zolan      Photo ID: 179924     Uploaded by: Jeremy Zolan   View Count: 595   Approval status: Public galleries    Type: Photo - 446 x 474 pixels (0.2 Mpix)

4KG-U2ABeryl Be3Al2(Si6O18)

08288640014947132045387.jpg
Captain Cook's Quarry, Newtown, Fairfield County, Connecticut, USA

Quite an old (and ugly) specimen of Beryl from an esoteric and defunct Connecticut locality. The termination of the crystal is buried in the matrix. Collected by Earle C. Sullivan circa the 1940's.

Size: 4.1cm x 4.0cm
Copyright: © 2008 Jeremy Zolan      Photo ID: 179923     Uploaded by: Jeremy Zolan   View Count: 706   Approval status: Public galleries    Type: Photo - 432 x 415 pixels (0.2 Mpix)

E7F-5R3Bertrandite Be4(Si2O7)(OH)2

02951050014947205589321.jpg
Casey Quarry, Ridgefield, Fairfield County, Connecticut, USA

Aside from the Branchville Mica Mine, many of the pegmatites in the western part of Connecticut are virtually unknown among most local collectors. The Ridgefield Pegmatite is one of those seldom known localities. Despite admittedly being an ugly specimen at first glance, this specimen is from quite an odd locality. Looking at the recesses in this piece under magnification reveals an abundance of glistening, well-formed crystals of bertrandite. Collected by J. Kirk circa the 1980's.

Size: 7.1cm x 5.9cm
Copyright: © 2008 Jeremy Zolan      Photo ID: 179922     Uploaded by: Jeremy Zolan   View Count: 835   Approval status: Public galleries    Type: Photo - 468 x 291 pixels (0.1 Mpix)

583-46TQuartz (Var: Amethyst) SiO2

Multiple photos available
00776740014946308807534.jpg
Diamond Hill, Ashaway, Hopkinton, Washington Co., Rhode Island, USA

Amethyst scepters from this Rhode Island locality have never been prolific, but have always been quite popular among east coast collectors. I really like this specimen because unlike most from this locality I have seen, it has a nice milky quartz matrix without being skimpy on the size and color of the amethyst crystals.

Size: 7.5cm x 6.0cm
Copyright: © 2008 Jeremy Zolan      Photo ID: 179894     Uploaded by: Jeremy Zolan   View Count: 789   Approval status: Public galleries    Type: Photo - 576 x 624 pixels (0.4 Mpix)

PHY-TLCBeryl Be3Al2(Si6O18)

04126090014947205584691.jpg
Hale-Walker prospects, Collins Hill, Portland, Middlesex Co., Connecticut, USA

The central Connecticut pegmatite district is loaded with localities for beryl crystals. This specimen, collected circa 1940 by Earle C. Sullivan is a nice example from a moderately well-known quarry in Portland.

Size: 3.6cm x 4.2cm
Copyright: © 2008 Jeremy Zolan      Photo ID: 179892     Uploaded by: Jeremy Zolan   View Count: 612   Approval status: Public galleries    Type: Photo - 432 x 513 pixels (0.2 Mpix)

05X-5APFluorite CaF2

01828920014946724585326.jpg
Thomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield Co., Connecticut, USA

An aesthetic sample of complexly crystallized, grape jelly colored fluorite from the Thomaston Dam Railroad Cut.

Size: 8.6cm x 6.0cm
Copyright: © 2008 Jeremy Zolan      Photo ID: 179891     Uploaded by: Jeremy Zolan   View Count: 538   Approval status: Public galleries    Type: Photo - 504 x 325 pixels (0.2 Mpix)

10P-F7MColumbite-(Fe)-Columbite-(Mn) Series

04861770014947205586473.jpg
Biermann Quarries (Bethel quarries) and tourmaline ledge, Bethel, Fairfield County, Connecticut, USA

The Columbite crystal on this specimen from Biermann's Quarry in Bethel, Connecticut is large compared to other crystals from the locality. Once quite a prolific locality, this quarry is now very much picked over and is technically off-limits to collecting because it resides within a state park. This specimen is a generous gift of Elmore Easter to me.

Crystal Size: 2.4cm x 0.5cm
Copyright: © 2008 Jeremy Zolan      Photo ID: 179776     Uploaded by: Jeremy Zolan   View Count: 588   Approval status: Public galleries    Type: Photo - 396 x 314 pixels (0.1 Mpix)
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