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Henry Barwood's Photo Gallery

KQM-C4ECacoxenite : Fe3+24AlO6(PO4)17(OH)12·75H2O, Strengite : FePO4·2H2O, Goethite : α-Fe3+O(OH)

Coon Creek Mine, Shady, Polk Co., Arkansas, USA

Field of View: 2 mm

Another interesting field of cacoxenite on goethite with strengite from the Coon Creek Mine, Arkansas. FOV is about 2 X 2 mm. Imaged with a 48mm B&L objective on a bellows mount. Canon 40D with a fluorescent ring light. Stacked using Combine Z
Photo ID: 767135     Uploaded by: Henry Barwood   View Count: 82   Approval status: Public galleries    Type: Photo - 1024 x 773 pixels (0.8 Mpix)

5LK-89DStrengite : FePO4·2H2O, Cacoxenite : Fe3+24AlO6(PO4)17(OH)12·75H2O

Coon Creek Mine, Shady, Polk Co., Arkansas, USA

Field of View: .5 mm

Little Ball of light pink strengite with cacoxenite. Coon Creek Mine, Arkansas. Old material from the 1980's . FOV is .5 X .5 mm. Imaged with a 300mm canon telephoto and 23mm Nikon objective mounted in a tube configuration. Canon 40D and stacked using Combine Z.
Photo ID: 767086     Uploaded by: Henry Barwood   View Count: 77   Approval status: Public galleries    Type: Photo - 1024 x 852 pixels (0.9 Mpix)

CR8-K7HCacoxenite : Fe3+24AlO6(PO4)17(OH)12·75H2O, Beraunite : Fe2+Fe3+5(PO4)4(OH)5·6H2O, Strengite : FePO4·2H2O

Coon Creek Mine, Shady, Polk Co., Arkansas, USA

Field of View: 2 mm

Cleaning out some old boxes and found a specimen of cacoxenite, etc. from the Coon Creek Mine in Arkansas. This would have been collected on one of the famous (or infamous) Coon Creek trips in the 1980's. Cacoxenite growing on beraunite completely pseudomorphed by goethite with a small group of strengite crystals. FOV is about 2 X 3 mm. Imaged with a 48mm B&L objective on a bellows mount. Canon 40D with a fluorescent ring light. Stacked using Combine Z
Photo ID: 766901     Uploaded by: Henry Barwood   View Count: 145   Approval status: Public galleries    Type: Photo - 1024 x 730 pixels (0.7 Mpix)

W2C-MV0Cacoxenite : Fe3+24AlO6(PO4)17(OH)12·75H2O, Rockbridgeite : Fe2+Fe3+4(PO4)3(OH)5

Phosphoria Mine, Noralyn/Phosphoria Mines, Central Florida Phosphate District, Polk Co., Florida, USA

Field of View: .5 mm

Cacoxenite from the Phosphoria Mine, Polk County Florida. Vugs developed in the massive rockbridgeite have a coating of clay (kaolinite, mostly) with sprays of cacoxenite growing on the clay coating. Typical material from the iron-rich caprock overlying the phosphate matrix. Collected in 1984 when this mine was active. FOV is .4 X .5 mm. Imaged with a 300mm canon telephoto and 23mm Nikon objective mounted in a tube configuration. Canon 40D and stacked using Combine Z.
Photo ID: 766045     Uploaded by: Henry Barwood   View Count: 56   Approval status: Public galleries    Type: Photo - 1024 x 719 pixels (0.7 Mpix)

5PA-0KCEleonorite : Fe3+6(PO4)4O(OH)4·6H2O, Cacoxenite : Fe3+24AlO6(PO4)17(OH)12·75H2O, Rockbridgeite : Fe2+Fe3+4(PO4)3(OH)5

Phosphoria Mine, Noralyn/Phosphoria Mines, Central Florida Phosphate District, Polk Co., Florida, USA

Field of View: .5 mm

Eleonorite and cacoxenite from the Phosphoria Mine, Polk County Florida. Typical material from the iron-rich caprock overlying the phosphate matrix. Collected in 1984 when this mine was active. FOV is .5 X .6 mm. Imaged with a 300mm canon telephoto and 23mm Nikon objective mounted in a tube configuration. Canon 40D and stacked using Combine Z.
Photo ID: 766044     Uploaded by: Henry Barwood   View Count: 65   Approval status: Public galleries    Type: Photo - 1024 x 804 pixels (0.8 Mpix)

176-8F3Eleonorite : Fe3+6(PO4)4O(OH)4·6H2O

Phosphoria Mine, Noralyn/Phosphoria Mines, Central Florida Phosphate District, Polk Co., Florida, USA

Field of View: .3 mm

Eleonorite from the Phosphoria Mine, Polk County Florida. Tiny, down in a vug, and very difficult to image. Collected in 1984 when this mine was active. FOV is .3 X .3 mm. Imaged with a 300mm canon telephoto and 23mm Nikon objective mounted in a tube configuration. Canon 40D and stacked using Combine Z.
Photo ID: 766021     Uploaded by: Henry Barwood   View Count: 49   Approval status: Public galleries    Type: Photo - 1024 x 930 pixels (1.0 Mpix)

MXH-KPXNatrolite : Na2(Si3Al2)O10·2H2O, Aegirine : NaFe3+Si2O6

Big Rock Quarry, Granite Mountain area, Little Rock, Pulaski Co., Arkansas, USA

Field of View: 3 mm

Natrolite speared on aegirine from the eggletonite pegmatite found at 3M Big Rock Quarry, Pulaski County, Arkansas. FOV is about 2 X 3 mm. Imaged with a 48mm B&L objective on a bellows mount. Canon 40D with a fluorescent ring light. Stacked using Combine Z
Photo ID: 763288     Uploaded by: Henry Barwood   View Count: 81   Approval status: Public galleries    Type: Photo - 1024 x 1482 pixels (1.5 Mpix)

8M7-RRUPyrophanite : Mn2+TiO3, Eggletonite : (Na,K,Ca)2(Mn,Fe)8(Si,Al)12O29(OH)7·11H2O

Big Rock Quarry, Granite Mountain area, Little Rock, Pulaski Co., Arkansas, USA

Field of View: .6 mm

At our micro mineral gathering this weekend, Steve Stuart brought down an egg carton that had some 3M central dike rock pegmatite he acquired in Cleveland. It was apparently from 2009 or so. After looking at it he asked if it contained eggletonite. I checked it and sure enough, it did. After he looked it over he put the rest up as give away material and I managed to find this piece. Eggletonite with pyrophanite on aegirine with some tiny zircons. 3M Big Rock Quarry, Pulaski County, Arkansas. FOV is about .5 X .6 mm. Imaged with a 300mm canon telephoto and 23mm Nikon objective mounted in a tube configuration. Canon 40D and stacked using Combine Z.
Photo ID: 763206     Uploaded by: Henry Barwood   View Count: 59   Approval status: Public galleries    Type: Photo - 1024 x 1177 pixels (1.2 Mpix)

4X8-LJGHematite : Fe2O3, Jarosite : KFe3+ 3(SO4)2(OH)6

Silver Coin Mine, Valmy, Iron Point District, Humboldt Co., Nevada, USA

Field of View: .4 mm

Hematite after an Fe-phosphate (?) from the phosphate stope, Siver Coin mine, Valmy, Nevada. Not much of an image, but I like it! FOV about .4 X .5mm Imaged with a Canon 40D, 23mm Nikon objective and 300mm Canon FD telephoto in a tube configuration, fluorescent ring light, and stacked using Combine Z software.
Photo ID: 759632     Uploaded by: Henry Barwood   View Count: 48   Approval status: Public galleries    Type: Photo - 1019 x 756 pixels (0.8 Mpix)

WP4-RFWJarosite : KFe3+ 3(SO4)2(OH)6

Silver Coin Mine, Valmy, Iron Point District, Humboldt Co., Nevada, USA

Field of View: .5 mm

Closer look at the jarosite from the phosphate stope at the Sliver Coin mine, Valmy, Nevada. Not certain what the altered rims on the crystals are. FOV about .5 X .6 mm Imaged with a Canon 40D, 23mm Nikon objective and 300mm Canon FD telephoto in a tube configuration, fluorescent ring light, and stacked using Combine Z software.
Photo ID: 759442     Uploaded by: Henry Barwood   View Count: 90   Approval status: Public galleries    Type: Photo - 1024 x 1143 pixels (1.2 Mpix)
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