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Dean Allum's Photo Gallery

LWG-VDECalcite

Popes Bluff, Colorado Springs Area, El Paso Co., Colorado, USA

Field of View: 30 cm
Largest Crystal Size: 12 cm

Irregular shaped Calcite concretions 5 to 12 cm long. These were found on a road nearby after a flood.
Photo ID: 911970     Uploaded by: Dean Allum   View Count: 7   Approval status: Public galleries    Type: Photo - 3862 x 2292 pixels (8.9 Mpix)

DEL-Y5ACalcite

Popes Bluff, Colorado Springs Area, El Paso Co., Colorado, USA

Field of View: 25 cm
Largest Crystal Size: 80 mm

Calcite concretions 4 to 8 cm wide. Walnut to spherical shaped. These were found on a road nearby after a flood.
Photo ID: 911968     Uploaded by: Dean Allum   View Count: 6   Approval status: Public galleries    Type: Photo - 4272 x 2848 pixels (12.2 Mpix)

XPH-MJVCalcite

Bastrop Co., Texas, USA

Dimensions: 10 cm x 6.5 cm x 0.7 cm
Field of View: 25 cm

Yellow calcite, 10cm across, one with crystal faces found in the Colorado River in Bastrop County. These are probably portions of concretions
Photo ID: 911966     Uploaded by: Dean Allum   View Count: 3   Approval status: Public galleries    Type: Photo - 4272 x 2848 pixels (12.2 Mpix)

2PW-MRJPyrite

Bastrop Co., Texas, USA

Field of View: 35 cm

Pyrite concretions of irregular shapes, 5 to 11 cm long. Found in the Colorado River in Bastrop County, TX
Photo ID: 910748     Uploaded by: Dean Allum   View Count: 3   Approval status: Public galleries    Type: Photo - 2296 x 1632 pixels (3.7 Mpix)

EF8-T8KPyrite

Bastrop Co., Texas, USA

Field of View: 35 cm

Pyrite concretions of irregular shapes, 6 to 11 cm long. Found in the Colorado River in Bastrop County, TX
Photo ID: 910747     Uploaded by: Dean Allum   View Count: 5   Approval status: Public galleries    Type: Photo - 3499 x 2680 pixels (9.4 Mpix)

XTU-4CJPyrite

Bastrop Co., Texas, USA

Field of View: 35 cm
Largest Crystal Size: 12 cm

Pyrite concretions of irregular shapes, 7 to 12 cm long. Some resembling Olmec artifacts. Found in the Colorado River in Bastrop County, TX
Photo ID: 910746     Uploaded by: Dean Allum   View Count: 5   Approval status: Public galleries    Type: Photo - 3226 x 2486 pixels (8.0 Mpix)

4G1-A02Pyrite

Bastrop Co., Texas, USA

Field of View: 40 cm
Largest Crystal Size: 17 cm

Unusual shape and long Pyrite concretions. Largest is 17cm long, 675 gm. Found in the Colorado River in Bastrop County, TX
Photo ID: 910743     Uploaded by: Dean Allum   View Count: 6   Approval status: Public galleries    Type: Photo - 3292 x 2062 pixels (6.8 Mpix)

GRE-N6XPyrite

Bastrop Co., Texas, USA

Field of View: 35 cm

Pyrite Concretion masses, 5 to 14 cm across, with oolitic to botryoidal morphologies. Found in the Colorado River in Bastrop County, TX
Photo ID: 910741     Uploaded by: Dean Allum   View Count: 4   Approval status: Public galleries    Type: Photo - 3351 x 2588 pixels (8.7 Mpix)

RED-0WPPyrite

Bastrop Co., Texas, USA

Field of View: 35 cm
Largest Crystal Size: 55 mm

Pyrite concretions found in the Colorado River in Bastrop, TX. Largest is 5.5cm across. Multiple spheres have become intergrown
Photo ID: 910740     Uploaded by: Dean Allum   View Count: 8   Approval status: Public galleries    Type: Photo - 2958 x 2014 pixels (6.0 Mpix)

W05-DQDPyrite

Bastrop Co., Texas, USA

Largest Crystal Size: 85 mm

Spherical Pyrite concretions 18 to 85mm in diameter. Found in the Colorado River in Bastrop County, TX. These have various thicknesses of Limonite coatings. Broken spheres often contain black organic matter near their center as a probable nucleation source. Elsewhere these are sold under the marketing name "boji stones"
Photo ID: 910737     Uploaded by: Dean Allum   View Count: 7   Approval status: Public galleries    Type: Photo - 3057 x 2369 pixels (7.2 Mpix)
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