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Kelly Nash's Photo Gallery

TJW-AMMBaryte BaSO4

Multiple photos available
09172370015684019924271.jpg
Palos Verdes Hills, Palos Verdes peninsula, Los Angeles Co., California, USA

Dimensions: 82 mm x 76 mm x 60 mm
Largest Crystal Size: 4 cm

Lovely cabinet cluster of barite crystals to 4 cm., from this classic sea-cliff locality, located just 20 miles from downtown Los Angeles. Ex Joe Key, Al Cerny, via Steve Hardinger.
Copyright: © Kelly Nash      Photo ID: 999424     Uploaded by: Kelly Nash   View Count: 8   Approval status: Public galleries    Type: Photo - 3425 x 2751 pixels (9.4 Mpix)

X0H-YV8Chert

07461250015677161616013.jpg
Nebraska, USA

Dimensions: 14.2 cm x 6.2 cm x 5.5 cm
Weight: 671 g

Large alluvial cobble of “Prairie Agate” (two sides), most likely from the Ogallala National Grasslands in northwest Nebraska, in the same general area that Fairburn Agates (or “Fortification Agates”) are found (and also in the Black Hills in South Dakota). Some are also found occasionally in the Platte River alluvium all the way to the eastern part of the state.

Prairie Agate was designated the “state rock” of Nebraska in 1967. That fact is a hint that it is not really agate (a mineral), but chert (a rock). It is very hard and takes a good polish, but the layers are generally not as distinct as banded agates usually are.

Prairie Agate is believed to have originated in mostly marine sedimentary limestones of Middle to Late Pennsylvanian and early Permian ages that were deposited in the Front Range and Hartville Uplift of Wyoming and in the Black Hills of South Dakota. These rocks were subsequently eroded and the hard siliceous materials were carried into Wyoming, South Dakota, and Nebraska by streams that deposited basal conglomerates in the Chadron Formation of Oligocene age. (Source: Nebr. Geol. Survey “Agate Lexicon”).
Copyright: © Kelly Nash      Photo ID: 997938     Uploaded by: Kelly Nash   View Count: 11   Approval status: Public galleries    Type: Photo - 543 x 611 pixels (0.3 Mpix)

RT9-21RClinoptilolite, Quartz SiO2 , Calcite CaCO3

02035230015672071765423.jpg
Kanan Road Quarry, Agoura Hills, Santa Monica Mts, Los Angeles Co., California, USA

Dimensions: 58 mm x 47 mm x 37 mm

Clinoptilolite with quartz and calcite, on basalt, from the Kanan Road Quarry, about 30 miles west of downtown Los Angeles. The clinoptilolite occurs as brilliant small (sub-mm.) glassy crystals intergrown with tiny quartz crystals. Much larger crystals and masses of cream-colored calcite cover much of the surface. Ex Robert Ray (Northridge, California), with an acquisition date of 1971, then went to Dave Shannon, and later, Dana Slaughter.
Copyright: © Kelly Nash      Photo ID: 996888     Uploaded by: Kelly Nash   View Count: 9   Approval status: Public galleries    Type: Photo - 4000 x 3000 pixels (12.0 Mpix)

X7A-KUQDanburite CaB2Si2O8 , Diopside CaMgSi2O6 , Phlogopite KMg3(AlSi3O10)(OH)2

09745020015653055726270.jpg
Russell, St. Lawrence Co., New York, USA

Dimensions: 40 mm x 30 mm x 28 mm

Danburite crystals on typical green diopside matrix and with dark brown phlogopite mica.
Copyright: © Kelly Nash      Photo ID: 983309     Uploaded by: Kelly Nash   View Count: 25   Approval status: Public galleries    Type: Photo - 2393 x 2147 pixels (5.1 Mpix)

8RA-EMFCelestine SrSO4

06306870015651439099858.jpg
Bull Creek, Austin, Travis Co., Texas, USA

Dimensions: 30 mm x 24 mm x 20 mm

Bright blue miniature-sized celestine crystal on limestone matrix. Ex Blake Barnett.
Copyright: © Kelly Nash      Photo ID: 971877     Uploaded by: Kelly Nash   View Count: 8   Approval status: Public galleries    Type: Photo - 2482 x 2134 pixels (5.3 Mpix)

QX8-2RTFerberite FeWO4

Multiple photos available
01230320015639079601295.jpg
Old Mine Park, Long Hill, Trumbull, Fairfield County, Connecticut, USA

Dimensions: 20 mm x 13 mm x 11 mm
Weight: 11.3 g

Ferberite pseudomorph after a bipyramidal scheelite crystal. Opposite side (child photo) shows attached blady yellow crystals which I believe to be tungstite (but not analyzed). Ex David Burgess (6/17/1983), via Alan Benson. I measured a specific gravity of 6.3 for this specimen.
Copyright: © Kelly Nash      Photo ID: 968551     Uploaded by: Kelly Nash   View Count: 25   Approval status: Public galleries    Type: Photo - 1743 x 1991 pixels (3.5 Mpix)

Argyle Diamond Mine, Aug. 8, 2010

04246890015631126045572.jpg
Argyle Diamond Mine, Lake Argyle area, Wyndham-East Kimberley Shire, Western Australia, Australia

Aerial photo by Reise-Line, courtesy of Wikimedia Commons.
Copyright: © Reise-Leine      Photo ID: 967017     Uploaded by: Kelly Nash   View Count: 38   Approval status: Public galleries    Type: Photo - 2048 x 1536 pixels (3.1 Mpix)

DPF-6P2Pink Opal

06739210015630593024302.jpg
Acari Mine, Caraveli Province, Arequipa, Peru

Dimensions: 64 mm x 29 mm x 20 mm
Field of View: 32 mm
Weight: 54 g

Section of a pink opal vein from the Acari Mine area. Palygorskite inclusions cause the coloration, apparently.
Copyright: © Kelly Nash      Photo ID: 966862     Uploaded by: Kelly Nash   View Count: 17   Approval status: Public galleries    Type: Photo - 1598 x 3073 pixels (4.9 Mpix)

W5T-E53Hematite Fe2O3 , Goethite α-Fe3+O(OH) , Glauconite (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2

03516480015621740062518.jpg
Cass Co., Texas, USA

Field of View: 20 cm

Typical nodules of bog iron ore from Cass County, Plate 7 of Eckels (1928) The Brown Iron Ores of East Texas, USGS Bulletin 902. Bog iron ore was mined extensively in East Texas, beginning in Civil War times. The nodules are primarily limonite and hematite replacing glauconite. Some higher-grade nodules contain shiny, botryoidal goethite in the center.
Photo ID: 964662     Uploaded by: Kelly Nash   View Count: 18   Approval status: Public galleries    Type: Photo - 745 x 1024 pixels (0.8 Mpix)

Mica Hill Mica Mine - 1910

01694920015589823115166.jpg
Mica Lode Mine, Eight Mile Park Pegmatite Mining District, Fremont Co., Colorado, USA

"Mica Hill mica mine - 4 miles NW of Canyon City. Mica in irregularly vertical streak in back of cut and over two figures. Mica in mass of bunches wedge and "A" shaped blocks. (C.A. Beghtol in background; J.D. Endicott in foreground). Fremont County, Colorado. 1910." Photo by D.B. Sterrett, 1910, courtesy USGS Historical Mine Photograph Database.
Photo ID: 958511     Uploaded by: Kelly Nash   View Count: 22   Approval status: Public galleries    Type: Photo - 1156 x 838 pixels (1.0 Mpix)
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