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Sam Cordero, Jr.'s Mindat Home Page

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Registered member joined prior to 15th Oct 2005 (unrecorded)

Sam Cordero, Jr. has uploaded:
35 Mineral Photos
As a hobby I enjoy field collecting locally. I focus on minerals with Rare Earth Elements (REE's). I admire the historical aspect of Mineralogy. I also love all of the science that is Mineralogy.


Favourite Photos

Natural History Museum - Vienna

Natural History Museum - Vienna

Trip by Jolyon in January 2011. For article.
Photo ID: 362546     Uploaded by: Jolyon & Katya Ralph   View Count: 453   Approval status: Public galleries    Type: Photo - 1067 x 1600 pixels (1.7 Mpix)

51G-VYDDavidite-(La) : (La,Ce)(Y,U,Fe)(Ti,Fe)20(O,OH)38

Billeroo Davidite Prospect, Mt Victor Plumbago Station, Olary Province, South Australia, Australia

Dimensions: 6 cm x 5 cm x 3 cm

Large single davidite crystal 6cm x 5cm x 3cm. From the Billeroo Davidite Deposit. Found in 2009 by digging on the south side of the hill in the topsoil. Trevor Dart specimen and photograph.
Photo ID: 353935     Uploaded by: Trevor Dart   View Count: 606   Approval status: Public galleries    Type: Photo - 1024 x 792 pixels (0.8 Mpix)

52H-F81Tourmaline : A(D3)G6(T6O18)(BO3)3X3Z

Sapo Mine, Ferruginha, Conselheiro Pena, Doce valley, Minas Gerais, Brazil

A classic tourmaline from the Sapo Mine. Specimen size 2.6 x 1 cm.
Copyright: © A&M      Photo ID: 329897     Uploaded by: AM Mizunaka   View Count: 9229   Approval status: Public galleries    Type: Photo - 382 x 800 pixels (0.3 Mpix)

C7K-FVNColumbite-(Fe) : FeNb2O6

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex Co., Connecticut, USA

Doubly-terminated columbite-(Fe) crystal, 9 mm long, in muscovite. Focus layer stack image. Harold Moritz collection.
Copyright: © 2010 Harold Moritz      Photo ID: 307935     Uploaded by: Harold Moritz   View Count: 369   Approval status: Public galleries    Type: Photo - 1313 x 1050 pixels (1.4 Mpix)

F5H-L11Ixiolite (Var: Scandian Ixiolite (of von Knorring)) : (Nb,Ta,Ti,Sc,Fe,Mn)4O8

Multiple photos available
Namivu Pegmatite, Alto Ligonha District, Zambezia Province, Mozambique

Dimensions: 11.8 mm x 12 mm x 6 mm

Sharp crystal of scandian ixiolite showing very well an interesting spiral growth pattern. Size: 11.8mm x 12mm x 6mm.
Copyright: © Donald Doell      Photo ID: 286512     Uploaded by: Donald Doell   View Count: 657   Approval status: Public galleries    Type: Photo - 1438 x 1456 pixels (2.1 Mpix)

LXQ-L12Monazite-(Sm) : (Sm,Gd,Ce,Th)(PO4)

Multiple photos available
Brown Derby No. 1, Brown Derby Mine, Quartz Creek Pegmatite District, Gunnison Co., Colorado, USA

Dimensions: 5 cm x 3.5 cm x 1.7 cm

Crystalline associated with lepidolite; 5x3.5x1.7cm; Another wonderful specimen of this extremely rare species. This piece registered 1750 CPM on my Radalert 100. Collected by Rudy Bolona, Sept. 2009.
Photo ID: 261357     Uploaded by: Rudy Bolona   View Count: 704   Approval status: Public galleries    Type: Photo - 640 x 480 pixels (0.3 Mpix)

YK7-16JTorbernite : Cu(UO2)2(PO4)2·12H2O

Multiple photos available
Rock Landing Quarry, Haddam Neck, Haddam, Middlesex Co., Connecticut, USA

Field of View: 7 mm

Crystals approx. 0.25 mm; field of view about 7 mm. See additional photos for other areas on this same specimen. Field collected in 2008 by, photographed by, and in the collection of Fred E Davis.
Copyright: © FED '09      Photo ID: 230472     Uploaded by: Fred E. Davis   View Count: 557   Approval status: Public galleries    Type: Photo - 2880 x 2160 pixels (6.2 Mpix)

67X-H4ESamarskite-(Y) : (Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8

Spinelli prospect, Glastonbury, Hartford Co., Connecticut, USA

Dimensions: 25 mm x 23 mm x 15 mm

Samarskite-(Y) crystal (14 by 20 by 6 mm) protruding from a mass of samarskite-(Y) (overall dimensions 25 by 23 by 15 mm). The crystal shows a
yellow alteration product and some of the brick-red feldspar in which
it was embedded. I removed this the "old fashioned" way with hammer and chisel. Every analysis I have examined (both published and
private) where the source of the material is not in question and the
data are available for study, clearly indicates samarskite-(Y) and
excludes ishikawaite. The first analysis was by Roger C. Wells, Chief
Chemist at the U.S. Geological Survey, who published his data in USGS
Bulletin 878, 1937. The most recent analysis was by Hanson, Jarnot,
Falster, Simmons and Nizamoff, "Nb-Ta-Ti Minerals from Two Pegmatites of
the Middletown Area, Connecticut," 2003, presented at the Rochester
Mineralogical Symposium. Note: Private property; specimens collected with permission)

Field collected by, photographed by, and in the collection of Fred E
Davis, 2008.
Copyright: © FED '09      Photo ID: 227030     Uploaded by: Fred E. Davis   View Count: 974   Approval status: Public galleries    Type: Photo - 1279 x 959 pixels (1.2 Mpix)

YFD-KJHUraninite : UO2, Uranophane : Ca(UO2)2[HSiO4]2·5H2O

John Salak Quarry, Haddam, Middlesex Co., Connecticut, USA

Overall dimensions of specimen in current view: 9.19 mm wide by 11.7 mm tall.

A cluster of seven crystals (four visible in photo) of uraninite with a yellow uranophane coating. Photographed by and in the collection of Fred E Davis. Photo of the Day - 14th Dec 2013
Copyright: © FED '10      Photo ID: 222571     Uploaded by: Fred E. Davis   View Count: 1562   Approval status: Public galleries    Type: Photo - 1430 x 1514 pixels (2.2 Mpix)

J1Y-8U0Ishikawaite : U4+Fe2+Nb2O8

Russell Brothers Quarry, Topsham, Sagadahoc Co., Maine, USA

Dimensions: 22.3 mm x 13.8 mm x 9.4 mm

XRF confirms ishikawaite. Specimen Dimensions: 22.3 x 13.8 x 9.4 mm

Collected in Aug '03, Photographed by & Collection of: Fred E Davis

Update: After a discussion with Clifford Trebilcock about where I found this specimen, I have updated the locality to be more precise. Photo of the Day - 18th Dec 2008
Copyright: © FED '10      Photo ID: 195077     Uploaded by: Fred E. Davis   View Count: 1430   Approval status: Public galleries    Type: Photo - 1873 x 2023 pixels (3.8 Mpix)
Photos 1 to 10 of 17
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