West Camp, Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico

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Calcite : CaCO₃, Fluorite : CaF₂
	Vieja Mine, Francisco Portillo, West Camp, Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico From the Vieja Mine area Group of calcite crystals with fluorite replacing the tips. Specimen is 10.3cm Across. Photographed by, and in the collection of Karl Volkman.
© Karl Volkman	Photo ID: 12854 View Count: 432
Calcite : CaCO₃, Mimetite : Pb₅[Cl\|(AsO₄)₃]
	Potosí Mine (El Potosí Mine), Francisco Portillo, West Camp, Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico I do not know whether to call this calcite on mimetite or mimetite on calcite. Whatever the case - what you have here are intergrown rhombs of calcite and balls of yellow mimetite! You can see the rust-hued accents from the limonite as well. A fascinating old Santa Eulalia combo specimen! 7.9 x 4.4 x 3.4cm
© Rob Lavinsky	Photo ID: 57069 View Count: 281
Calcite : CaCO₃, Aragonite : CaCO₃
	Vieja Mine, Francisco Portillo, West Camp, Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico Sparkling colorless calcite xls on and coating spheres of snow-white aragonite. The aragonite fluoresces bright green under UV. Size of specimen is 10x6.5x6cm
	Photo ID: 109862 View Count: 186
Calcite : CaCO₃
	Potosí Mine (El Potosí Mine), Francisco Portillo, West Camp, Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico Porcelain like rhombs form an exquisite cluster. 9.5cm X 6.5cm X 3cm. Ex Gene Tribbey. Photo by Dan Weinrich
© Geoffrey Krasnov	Photo ID: 86727 View Count: 153
Calcite : CaCO₃
	Potosí Mine (El Potosí Mine), Francisco Portillo, West Camp, Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico Colorless rhombic xls, some twinned, ranging in size from 2mm to 3cm. # SC-15 in my collection.
	Photo ID: 110132 View Count: 147
Calcite : CaCO₃
	Potosí Mine (El Potosí Mine), Francisco Portillo, West Camp, Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico Complex twinned calcites on calcite coated stalagtitic matrix. 6cm X 6cm X 15.4cm
© Geoffrey Krasnov	Photo ID: 89955 View Count: 137
Calcite : CaCO₃
	Buena Tierra Mine, Francisco Portillo, West Camp, Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico First generation iron oxide coated scalenohedrons with a secondary gemmy deposition forming complex rhombic crystals. 9cm X 5cm X 5cm
© Geoffrey Krasnov	Photo ID: 90005 View Count: 116
Calcite : CaCO₃
	Potosí Mine (El Potosí Mine), Francisco Portillo, West Camp, Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico Calcite, helictitic form. Level 6, Potosi Mine. 9.0 x 6.0 x 5.5 cm. Individual crystals about 5 mm. Kelly Nash specimen.
	Photo ID: 170882 View Count: 112
Calcite : CaCO₃
	Buena Tierra Mine, Francisco Portillo, West Camp, Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico Beautiful calcite crystal of 3 cm highth, with phantoms and inclusions.
© Christian Bracke	Photo ID: 119909 View Count: 106
Calcite : CaCO₃
	Potosí Mine (El Potosí Mine), Francisco Portillo, West Camp, Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico 10.9 x 4.4 x 3.4 cm. This is a stalactitic specimen of sparkly calcite that is decorated with three larger calcites, to 1.8 cm, from a later generation of growth. It is complete and undamaged all the way around.
© Rob Lavinsky	Photo ID: 133834 View Count: 96
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