's Image Gallery

Ericssonite: BaMn++2Fe+++O[Si2O7](OH)  
Orthoericssonite: BaMn2(Fe+++O)Si2O7(OH)  
Tephroite: Mn2SiO4

Comments: Dark brown ericssonite, intergrown with orthoericssonite, with pink rhodonite, light brown diopside (var. schefferite) and gray tephroite.
Location: Langban, Varmland, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Eriochalcite: CuCl2·2(H2O)

Comments: Green grains of eriochalcite from the eruption of 1875, Vesuvius volcano.
Location: Vesuvius volcano. Vesuvius, Naples, Naples province, Campania, Italy. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag

Erionite-Ca: (Ca,K2,Na2)2[Al4Si14O36]·15(H2O)

Comments: Radiating group of colorless acicular hexagonal prisms of erionite-Ca.
Location: Moeraki, Otago, South Island, New Zealand. Scale: See Image.
© Rruff Database

Erionite-K: (K2,Ca,Na2)2[Al4Si14O36]·15(H2O)

Comments: Randomly oriented colorless prismatic erionite-K crystals in a vug.
Location: Chase Creek, Falkland, British Columbia, Canada. Scale: See Image.
© Rruff Database

Erionite-Na: (Na2,K2,Ca)2[Al4Si14O36]·15(H2O)

Comments: White to pale green radiating erionite.
Location: Shurdo, Caucasus Mountains, Georgia, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Erlichmanite: OsS2

Comments: Large gray fractured grain of erlichmanite. Polished section in reflected light.
Location: Konder Mine, Konder alkaline-ultrabasic massif, Aldan shield, Saha (Sakha) Republic (Yakutia), Eastern-Siberian Region, Russia. Scale: Picture size 0.25 mm.
© Thomas Witzke / Abraxas-Verlag

Ernienickelite: NiMn++++3O7·3(H2O)

Comments: Very small reddish-black tabular crystals of ernienickelite on quartz.
Location: Siberia complex, Western Australia, Australia. Scale: Picture size 0.7 mm.
© Thomas Witzke / Abraxas-Verlag

Ernstite: (Mn++1-xFe+++x)Al(PO4)(OH)2-xOx  
Schoonerite: Fe++2ZnMnFe+++(PO4)3(OH)2·9(H2O)

Comments: 1 mm honey brown, acicular, radial sprays of ernstite with light green fibrous schoonerite and apatite in siderite.
Location: White Cap mine, Pennington County., South Dakota. Scale: Picture size 3 mm.
© Tom Loomis / Dakota Matrix

Ershovite: Na4K3(Fe++,Mn++,Ti)2Si8O20(OH)4·5(H2O)

Comments: Olive green coatings of ershovite on green aegirine.
Location: Mount Koashva, Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Erythrite: Co3(AsO4)2·8(H2O)  
Cobaltkoritnigite: (Co,Zn)(AsO3OH)·(H2O)

Comments: Dark purplish cobaltkoritnigite with pink erythrite.
Location: Schneeberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Erythrite: Co3(AsO4)2·8(H2O)  
Skutterudite: (Co,Ni)As3-x

Comments: Erythrite crystal on massive skutterudite.
Location: Bou Azzer, Morocco. Scale: Crystal size 1.5 cm.
© John Veevaert

Erythrosiderite: K2Fe+++Cl5·(H2O)  
Salammoniac: NH4Cl

Comments: Orange-brown aggregates of erythrosiderite with sal ammoniac. Material from the 1926 eruption of the Erythrosiderite is hygroscopic and must be stored in a closed vial. The photo was made through the vial.
Location: Vesuvius, Naples Province, Campania, Italy. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Eskebornite: CuFeSe2  
Jolliffeite: (Ni,Co)AsSe

Comments: Back-scattered electron image of jolliffeite in sulfurian eskebornite. Note the cracked appearance and the different brightness of eskebornite, which is a reflection of variable ratio of selenium to sulfur. (CanMin v 42, p 844).
Location: Niederschlema-Alberoda uranium deposit, in the Erzgebirge region of Germany. Scale: See Image.
© Canadian Mineralogist

Eskimoite: Ag7Pb10Bi15S36

Comments: Gray metallic eskimoite in quartz.
Location: Manhattan, Nye County, Nevada, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Eskolaite: Cr2O3  
Chalcocite: Cu2S

Comments: Green crystalline eskolaite on massive chalcocite.
Location: Lubelin, Poland. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Esperanzaite: NaCa2Al2(As+++++O4)2F4(OH)·2(H2O)

Comments: Pale blue-green botryoidal esperanzaite in rhyolite.
Location: Mina La Esperanza, Durango, Mexico. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Esperite: PbCa3Zn4(SiO4)4  
Hardystonite: Ca2ZnSi2O7  
Franklinite: (Zn,Mn++,Fe++)(Fe+++,Mn+++)2O4

Comments: Pale brown porcelaneous esperite with pinkish gray hardystonite and black franklinite.
Location: Franklin, Sussex County, New Jersey. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Esseneite: CaFe+++AlSiO6

Comments: Orange-brown crystalline coating of esseneite on anorthite.
Location: Kopeisk, Chelyabinsk District, Southern Urals, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ettringite: Ca6Al2(SO4)3(OH)12·26(H2O)

Comments: Small glassy whitish micro crystals of ettringite on a white powdery matrix.
Location: Ettringen, Eifel, Allemagne, Germany. Scale: 2.5 x 1 x 2 cm.
© John Veevaert

Ettringite: Ca6Al2(SO4)3(OH)12·26(H2O)

Comments: Doubly-terminated crystals of glassy yellow ettringite on matrix.
Location: N'Chwaning Mine, near Kuruman, South Africa. Scale: Crystal size 4 cm.
© Rob Lavinsky