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Cacoxenite : Fe3+24Al[(OH)12|O6|(PO4)17] · 17H2O | |
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Noralyn/Phosphoria Mines (IMC-Agrico), Central Florida Phosphate District, Polk Co., Florida, USA Width of field is 2.5 mm. Collection of Jesse Crawford. Equipment: Nikon D-100 on a homemade microscope. |
| © 2008 Jesse Crawford | Photo ID: 174664 View Count: 81 |
Vivianite : Fe2+3(PO4)2·8H2O | |
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Clear Spring Mine, Homeland, Polk Co., Florida, USA 2.3 x 2.0 x 1.7 cm. Perched aesthetically on matrix is a cluster of glassy and gemmy, blue-green, crystals of vivianite, to 1.0 cm in length. |
| © Rob Lavinsky | Photo ID: 226445 View Count: 65 |
Vivianite : Fe2+3(PO4)2·8H2O | |
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Clear Spring Mine, Homeland, Polk Co., Florida, USA 2.4 x 1.7 x 1.5 cm. A superbly formed crystal, of glassy and gemmy, blue-green, vivianite, 1.4 cm in length, is perched on matrix. Tim Blackwood Collection. |
| © Rob Lavinsky | Photo ID: 226444 View Count: 33 |
Vivianite : Fe2+3(PO4)2·8H2O | |
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Clear Spring Mine, Homeland, Polk Co., Florida, USA 2.2 x 0.4 x 0.2 cm. A rare American vivianite, this is a sharp, complete, doubly-terminated thumbnail crystal with blue and purple hues. Collected in the 1980s from a little known phosphate locality in Florida. |
| © Rob Lavinsky | Photo ID: 182786 View Count: 69 |
Vivianite : Fe2+3(PO4)2·8H2O | |
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Clear Spring Mine, Homeland, Polk Co., Florida, USA 2.3 x 1.6 x 0.6 cm. One of the very few Florida collector minerals - crystals of green to a unique blue (there are shades of both here) - against a stark white contrasting matrix. Small (as these typically are) but nice. From a find in the early 1980s. |
| © Rob Lavinsky | Photo ID: 188156 View Count: 62 |
Vivianite : Fe2+3(PO4)2·8H2O | |
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Clear Spring Mine, Homeland, Polk Co., Florida, USA 3.0 x 2.4 x 1.6 cm. A cluster of vivianite crystals on matrix is topped by a lustrous and translucent, blue- green, crystals measuring 1.5 cm in length. Superb, rich thumbnail from this important but rare US locale for vivianite. |
| © Rob Lavinsky | Photo ID: 226450 View Count: 37 |
Vivianite : Fe2+3(PO4)2·8H2O | |
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Clear Spring Mine, Homeland, Polk Co., Florida, USA 2.4 x 1.9 x 0.8 cm. A crystal of glassy and gemmy, blue green, vivianite measuring 2.0 cm in length, is perched on matrix. |
| © Rob Lavinsky | Photo ID: 226454 View Count: 36 |
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Clear Spring Mine, Homeland, Polk Co., Florida, USA 13.2 x 7.5 x 4.2 cm. A jackstraw arrangement of extremely lustrous, elongated, dark green vivianite crystals, to 2.0 cm in length (a large doubly-terminated crystal in middle). This is of good size for the deposit, and not many have ever come out. They are emplaced on a color-contrasting, limonite matrix. The vivianite crystals are in good shape ... |
| © Rob Lavinsky | Photo ID: 226436 View Count: 30 |
Vivianite : Fe2+3(PO4)2·8H2O | |
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Clear Spring Mine, Homeland, Polk Co., Florida, USA 1.5 x 1.4 x 1.1 cm. Rising vertically from its matrix is a cluster of lustrous and translucent, blue-green vivianite, in crystals to .8 cm in length. |
| © Rob Lavinsky | Photo ID: 226443 View Count: 30 |
Vivianite : Fe2+3(PO4)2·8H2O | |
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Clear Spring Mine, Homeland, Polk Co., Florida, USA 2.3 x 1.4 x 1.2 cm. Aesthetically perched on matrix, is a single crystal, 1.4 cm across, of glassy and gemmy, blue-green vivianite. The crystal is also doubly terminated. I particularly like the way the main termination fills a vug in the matrix. |
| © Rob Lavinsky | Photo ID: 226453 View Count: 27 |
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