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Tim Colman's Photo Gallery

0L2-LYPBaryte

Clouds Veins, Mallerstang, Eden, Cumbria, England, UK

Massive and platy baryte from tip adjacent to minor surface workings on Fell End Clouds. Scale given by cm scale adjacent. Sample collected June 1976.
Photo ID: 413877     Uploaded by: Tim Colman   View Count: 327   Approval status: Public galleries    Type: Photo - 2332 x 1620 pixels (3.8 Mpix)

Q6V-CEFCalcite

Britannia Mine, Mt Snowdon, Gwynedd, Wales, UK

Loose block of calcite vein from Britannia Mine. Collected June 2007. Card gives scale in cm.
Photo ID: 413751     Uploaded by: Tim Colman   View Count: 188   Approval status: Public galleries    Type: Photo - 1896 x 1431 pixels (2.7 Mpix)

0UT-P4TCalcite, Marcasite, Hematite

Britannia Mine, Mt Snowdon, Gwynedd, Wales, UK

Cut surface of calcite/marcasite breccia vein from Britannia Mine. Sample was loose block on tip in 1983. Shows hematite-stained calcite with rounded fragments of marcasite-rimmed volcanic tuff host rock. Right hand side shows banded thick calcite and thin marcasite bands. Scale shown by ruler in mm.
Sample is British Geological Survey sample number KB828.
Photo ID: 413750     Uploaded by: Tim Colman   View Count: 189   Approval status: Public galleries    Type: Photo - 3072 x 2304 pixels (7.1 Mpix)

Britannia Mine - looking along the vein

Britannia Mine, Mt Snowdon, Gwynedd, Wales, UK

View of Britania Mine looking SW over Glaslyn Lake along the line of the vein. Some brown tips can be seen. The small tip in the foreground by the lake is a blind barren trial about 50m into the hill. The workings of Britannia extend on 8 levels for 300m into the hill. All entrances are now covered with steel mesh by the National Trust (new owners of the area). White patches are snow! Photo taken 11 May 2010.
Photo ID: 413748     Uploaded by: Tim Colman   View Count: 305   Approval status: Public galleries    Type: Photo - 2304 x 3072 pixels (7.1 Mpix)

K4P-DJCCalcite, Marcasite

Britannia Mine, Mt Snowdon, Gwynedd, Wales, UK

Calcite/marcsite loose block on tip of Britannia mine. Banded calcite from vein that crosscuts earlier quartz/sulphide vein seen in situ underground during 1980s investigation (Colman and Laffoley, 1985). marcasite crystals at centre bottom of image. UK £1 coin for scale. Photo taken 11 May 2010.
Photo ID: 413746     Uploaded by: Tim Colman   View Count: 177   Approval status: Public galleries    Type: Photo - 3072 x 2304 pixels (7.1 Mpix)

URM-Q84Calcite, Marcasite

Britannia Mine, Mt Snowdon, Gwynedd, Wales, UK

Cut surface of calcite/marcasite vein in footwall of vein. Marcasite shows disruption of banding as if sheared during deposition. Footwall of No 2 Adit 80 m from entrance. Calcite fluoresces red under SW UV light. Ruler shows scale in mm. Photo taken in 1984.
British Geological Survey sample number KB1060
Photo ID: 413745     Uploaded by: Tim Colman   View Count: 167   Approval status: Public galleries    Type: Photo - 3072 x 2304 pixels (7.1 Mpix)

E2J-EN8Galena, Fluorite

Butts Quarry, Ashover, Derbyshire, England, UK

Loose block in SE corner of Butts Quarry showing amber to colourless fluorite cubes with some strings of massive galena. Hammer for scale. Photo taken 19 March 2009.
Photo ID: 413742     Uploaded by: Tim Colman   View Count: 349   Approval status: Public galleries    Type: Photo - 2304 x 3072 pixels (7.1 Mpix)

Butts Quarry SE face

Butts Quarry, Ashover, Derbyshire, England, UK

Butts Quarry SE face showing minor mineral workings up a small SW striking vein. Rock is Carboniferous Limestone. Quarry abandoned in 1950s. Small exposure of basaltic tuff (Ashover Tuff) in SE corner. Photo taken 19 March 2009.
Photo ID: 413735     Uploaded by: Tim Colman   View Count: 467   Approval status: Public galleries    Type: Photo - 3072 x 2304 pixels (7.1 Mpix)

9VJ-9AMMudstone

Gunthorpe Weir, East Bridgford, Rushcliffe, Nottinghamshire, England, UK

Pseudomorphs after halite cubes in Triassic Gunthorpe Member of the Simouth Mudstone Formation. Loose block on river bank below surface section in river cliff beside River Trent at Gunthorpe, Nottinghamshire; on the southeastern bank adjacent to the weir. Halite crystals were up to 1cm across. Centimetre scale below minerals. Photo taken on site on 8 Feb 2011
Photo ID: 367240     Uploaded by: Tim Colman   View Count: 438   Approval status: Public galleries    Type: Photo - 3072 x 2304 pixels (7.1 Mpix)

27K-798Gypsum

Gunthorpe Weir, East Bridgford, Rushcliffe, Nottinghamshire, England, UK

Horizontal Gypsum seam up to 5cm thick in Triassic Gunthorpe Member of Sidmouth Mudstone Formation. Surface section in river cliff beside River Trent at Gunthorpe, Nottinghamshire; on the southeastern bank adjacent to the weir. 8m section of the middle part of the member. Centimetre scale on photo. Photo taken on 8 Feb 2011
Photo ID: 367239     Uploaded by: Tim Colman   View Count: 486   Approval status: Public galleries    Type: Photo - 3072 x 2304 pixels (7.1 Mpix)
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