Mineral Specimen Images (E)

Eucairite: CuAgSe  
Crookesite: Cu7(Tl,Ag)Se4

Comments: Polished section (PPL) showing zoned crystal of cream-colored eucairite and pale lavender crookesite along with steel blue umangite and white clausthalite in dark gray gangue..
Location: Mine dump (tailings) of Shaft 371 near Hartenstein/Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Schlothauer

Eucairite: CuAgSe  
Crookesite: Cu7(Tl,Ag)Se4

Comments: Polished section (PPL) showing zoned crystal of cream-colored eucairite and pale lavender crookesite along with steel blue umangite and white clausthalite in dark gray gangue..
Location: Mine dump (tailings) of Shaft 371 near Hartenstein/Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Schlothauer

Eucairite: CuAgSe  
Schlemaite: (Cu,[ ])6(Pb,Bi)Se4  
Clausthalite: PbSe

Comments: Reflected-light digital-image of the intermixed schlemaite grain in type sample F2, from which the reflectance, crystallographic and crystal-structure data were obtained. (CanMin, v 41, p 1435).
Location: "Tiber" dike, -855-m level, block 5128, main shaft # 371, Niederschlema-Alberoda vein-type uranium depost at Hartensein, Erzgebirge, Germany. Scale: See Picture.
© Canadian Mineralogist

Eucairite: CuAgSe  
Schlemaite: (Cu,[ ])6(Pb,Bi)Se4  
Clausthalite: PbSe

Comments: Reflected-light digital-image of the intermixed schlemaite grain in type sample F2, from which the reflectance, crystallographic and crystal-structure data were obtained. (CanMin, v 41, p 1435).
Location: "Tiber" dike, -855-m level, block 5128, main shaft # 371, Niederschlema-Alberoda vein-type uranium depost at Hartensein, Erzgebirge, Germany. Scale: See Picture.
© Canadian Mineralogist

Eucairite: CuAgSe

Comments: Black dendritic eucairite in white calcite crystal.
Location: Skrikerum Copper Mine, near Tyrsarum, Kalmar, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Eucairite: CuAgSe

Comments: Black dendritic eucairite in white calcite crystal.
Location: Skrikerum Copper Mine, near Tyrsarum, Kalmar, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Euchlorine: KNaCu++3(SO4)3O

Comments: Olive green crusts of euchlorine on volcanic rock.
Location: Vesuvius, Campania, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Euchlorine: KNaCu++3(SO4)3O

Comments: Olive green crusts of euchlorine on volcanic rock.
Location: Vesuvius, Campania, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Euchroite: Cu2(AsO4)(OH)·3(H2O)

Comments: Dark green, blocky crystals of euchroite on matrix.
Location: Missoula County, Montana, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Euchroite: Cu2(AsO4)(OH)·3(H2O)

Comments: Green, well developed, coarsely-crystalline euchroite on matrix.
Location: L'Ubietová (Libethen) Slovak Republic. Scale: 1.9 x 1.2 x 0.8 cm.
© Fabre Minerals

Euchroite: Cu2(AsO4)(OH)·3(H2O)

Comments: Green, well developed, coarsely-crystalline euchroite on matrix.
Location: L'Ubietová (Libethen) Slovak Republic. Scale: 1.9 x 1.2 x 0.8 cm.
© Fabre Minerals

Euchroite: Cu2(AsO4)(OH)·3(H2O)

Comments: Dark green, blocky crystals of euchroite on matrix.
Location: Missoula County, Montana, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Euclase: BeAlSiO4(OH)

Comments: Euclase with sharp edges and great color. This specimen is from one of the famous and finest world finds of euclase, in the Colombian Emeralds area.
Location: Chivor, Columbia. Scale: 1.2 x 0.6 cm.
© Fabre Minerals

Euclase: BeAlSiO4(OH)

Comments: Euclase with sharp edges and great color. This specimen is from one of the famous and finest world finds of euclase, in the Colombian Emeralds area.
Location: Chivor, Columbia. Scale: 1.2 x 0.6 cm.
© Fabre Minerals

Eucryptite: LiAlSiO4

Comments: Fine grained, massive eucryptite. Fluorescent Red under SW.
Location: Midnight Owl mine, Yavapai Co., Arizona, USA. Scale: 6x4x4cm.
© Tom Loomis / Dakota Matrix

Eucryptite: LiAlSiO4

Comments: Fine grained, massive eucryptite. Fluorescent Red under SW.
Location: Midnight Owl mine, Yavapai Co., Arizona, USA. Scale: 6x4x4cm.
© Tom Loomis / Dakota Matrix

Eucryptite: LiAlSiO4

Comments: Gray massive eucryptite.
Location: Parker Mountain, Center Strafford, Strafford County, New Hampshire, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Eucryptite: LiAlSiO4

Comments: Gray massive eucryptite.
Location: Parker Mountain, Center Strafford, Strafford County, New Hampshire, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Eudialyte: Na4(Ca,Ce)2(Fe++,Mn,Y)ZrSi8O22(OH,Cl)2 (?)  
Natrolite: Na2[Al2Si3O10]·2(H2O)

Comments: Druse of gemmy, red eudialyte crystals to 1 mm on white natrolite.
Location: Mt. St. Hilaire, Quebec, Canada. Scale: Picture size 1.5 cm.
© John Veevaert

Eudialyte: Na4(Ca,Ce)2(Fe++,Mn,Y)ZrSi8O22(OH,Cl)2 (?)  
Natrolite: Na2[Al2Si3O10]·2(H2O)

Comments: Druse of gemmy, red eudialyte crystals to 1 mm on white natrolite.
Location: Mt. St. Hilaire, Quebec, Canada. Scale: Picture size 1.5 cm.
© John Veevaert