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James Cheshire's Photo Gallery

N25-WFFLawrencite

Nandan meteorite, Lihu - Yaochai area, Nandan County, Hechi, Guangxi, China

Field of View: 12 mm
Weight: 35.8 g

Crusts of green lawrencite on the surface of a heavily weathered Nantan iron meteorite (seen through the specimen's protective plastic bag).
Photo ID: 708130     Uploaded by: James Cheshire   View Count: 240   Approval status: Public galleries    Type: Photo - 888 x 888 pixels (0.8 Mpix)

ERN-V6WLawrencite

Nandan meteorite, Lihu - Yaochai area, Nandan County, Hechi, Guangxi, China

Field of View: 11 mm
Weight: 14.5 g

Droplets/crusts of bright green lawrencite on the surface of a heavily weathered Nantan iron meteorite (seen through the specimen's protective plastic bag).
Photo ID: 708100     Uploaded by: James Cheshire   View Count: 237   Approval status: Public galleries    Type: Photo - 888 x 888 pixels (0.8 Mpix)

Some of the Leucite Hills, looking northwest

Leucite Hills Mining District, Sweetwater Co., Wyoming, USA

In the right foreground is Zirkel Mesa with two cinder cones, in the middle distance is Hatcher Mesa, and on the left is Emmons Mesa with Emmons Cone on top. These features are all composed of Plio-Pleistocene lamproite lavas. Photo taken July 2012.
Copyright: © James Cheshire      Photo ID: 637859     Uploaded by: James Cheshire   View Count: 205   Approval status: Public galleries    Type: Photo - 3264 x 2448 pixels (8.0 Mpix)

1LM-PWTGlauconite

Johnson Co., Wyoming, USA

Field of View: 20 mm

A patch of green, micaceous glauconite in Cambrian limestone conglomerate. Glauconite very rarely exhibits a micaceous habit, despite being a mica group mineral. The patch is 7 mm long.
Photo ID: 599213     Uploaded by: James Cheshire   View Count: 302   Approval status: Public galleries    Type: Photo - 650 x 650 pixels (0.4 Mpix)

KWM-88HDiopside (Var: Violan), Tremolite (Var: Hexagonite)

Balmat-Edwards Zinc Mining District, St. Lawrence Co., New York, USA

Field of View: 25 mm

Masses of light blue violan (manganian diopside) with pink hexagonite (manganoan tremolite). Note how the violan transitions to typical pale green diopside in several places.
Photo ID: 598780     Uploaded by: James Cheshire   View Count: 404   Approval status: Public galleries    Type: Photo - 900 x 563 pixels (0.5 Mpix)

MK6-U2DGlauconite

Adams Co., Ohio, USA

Field of View: 15 mm

Silurian glauconite pellets from near Peebles, Adams County, Ohio.
Photo ID: 598601     Uploaded by: James Cheshire   View Count: 508   Approval status: Public galleries    Type: Photo - 800 x 800 pixels (0.6 Mpix)

Potter Mine headframe

Centre Hill Mine, Munro Township, Cochrane District, Ontario, Canada

The decaying headframe of the Potter Mine, which ceased operations in 1972. The mine exploited an Archean (2.7 Ga) volcanogenic massive sulfide deposit. Photo taken July 2013.
Copyright: © James Cheshire      Photo ID: 557940     Uploaded by: James Cheshire   View Count: 235   Approval status: Public galleries    Type: Photo - 1024 x 768 pixels (0.8 Mpix)

Komatiite flows

Pyke Hill, Munro Township, Cochrane District, Ontario, Canada

A complete Archean (2.7 Ga) komatiite flow sequence on Pyke Hill, just east of the Potter Mine in Cochrane District, Ontario. The komatiite has been completely serpentinized, but the original igneous textures are beautifully preserved. The flows were originally horizontal, and are now tilted 90 degrees. Photo taken July 2013.
Copyright: © James Cheshire      Photo ID: 557939     Uploaded by: James Cheshire   View Count: 229   Approval status: Public galleries    Type: Photo - 1024 x 768 pixels (0.8 Mpix)

Flooded mine shaft

Port Leyden Mine, Port Leyden, Lewis Co., New York, USA

Flooded shaft of the Port Leyden iron mine, looking northeast. Nelsonite (apatite and Fe-Ti oxide rock) is abundant around the wet depression at top right. Photo taken May 2013.
Copyright: © James Cheshire      Photo ID: 534309     Uploaded by: James Cheshire   View Count: 242   Approval status: Public galleries    Type: Photo - 1024 x 768 pixels (0.8 Mpix)

Marble rubble with hammer for scale

Old Marble quarry, Needles, Custer Co., South Dakota, USA

Rubble pile at the abandoned Black Hills Porcelain Clay and Marble Company quarry, northeast of Custer, South Dakota. The purity of the marble varies significantly. Photo taken July 2012.
Copyright: © James Cheshire      Photo ID: 496069     Uploaded by: James Cheshire   View Count: 256   Approval status: Public galleries    Type: Photo - 1024 x 768 pixels (0.8 Mpix)
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