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Edingtonite: BaAl2Si3O10·4(H2O)
Comments: Lath-shaped crystalline aggregates of edingtonite. Location: Jacupiranga mine, Sao Paolo, Brazil. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Comments: White, stout prisms of calcite on pinkish analcime with small, cream-colored bladed edingtionite crystals. Location: Old Kilpatrick, Dunbartonshite, Scotland. Scale: Picture Size 3 cm. © Dave Barthelmy
Edoylerite: Hg++3Cr++++++O4S2 Cinnabar: HgS
Comments: Yellow prismatic crystals of edoylerite with red cinnabar. Location: Clear Creek Claim (Clear Creek Mine), New Idria district, San Benito Co., California, USA. Scale: Picture size 1 mm. © Thomas Witzke / Abraxas-Verlag
Effenbergerite: BaCuSi4O10 Sugilite: KNa2(Fe+++,Mn+++,Al)2Li3Si12O30
Comments: Blue effenbergerite pods to across in massive purple sugilite. Location: Wessels Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Scale: Crystal size 4 mm. © John Veevaert
Efremovite: (NH4)2Mg2(SO4)3
Comments: White, massive efremovite. The mineral is hygroscopic and must be stored in a closed box. Location: Ronneburg U deposit, Gera district, Thuringia, Germany. Scale: Picture size 6 mm. © Thomas Witzke / Abraxas-Verlag
Eggletonite: Na2Mn8[Si11AlO29](OH)7·11(H2O)
Comments: Brown micro crystals of eggletonite in syenite. Location: 3M Quarry, Little Rock, Pulaski County, Arkansas, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Eglestonite: Hg6Cl3O(OH) (?)
Comments: Small yellow crystals and massive aggregates of eglestonite. Location: Landsberg (Moschellandsberg), Obermoschel, Palatinate, Rhineland-Palatinate, Germany. Scale: Picture size 0.8 mm. © Thomas Witzke / Abraxas-Verlag
Ehrleite: Ca2ZnBe(PO4)2(PO3,OH)·4(H2O) Parascholzite: CaZn2(PO4)2·2(H2O)
Comments: White to clear, slender, 1-2mm, thin platy crystals of ehrleite associated with slender or thin, long-bladed parascholzite. Type specimen courtesy of Museum of Geology, SD School of Mines. Location: Tip Top mine, Custer County, South Dakota, USA. Scale: Crystal size 1-2 mm. © Tom Loomis / Dakota Matrix
Eifelite: KNa3Mg4Si12O30
Comments: Clear glassy microcrystal of eifelite. Location: Bellerberg, Ettringen, Eifel, Rheinland-Pfalz, Germany. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Eirikite: KNa6Be2(Si15Al3)O39F2
Comments: Radial aggregates of silky white eirikite crystals in matrix. Location: Mt. Eveslogchorr, Chibiny, Kola, Russia. Scale: Not Given. © Diederik Visser
Eitelite: Na2Mg(CO3)2
Comments: Pale yellow crystalline eitelite. Location: Mapco Shrine Hospital Well #1 drill core, Green River Formation, Duchesne County, Utah, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Ekanite: ThCa2Si8O20
Comments: Complex specimen of many minerals, most notable are four red ekanite crystals (rare!) scattered around the specimen. Location: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mt Saint-Hilaire, Rouville Co., Québec, Canada. Scale: 6x4x4 cm. © John Betts - Fine Minerals
Ekaterinite: Ca2B4O7(Cl,OH)2·2(H2O)
Comments: Pale pink crystalline cleavage fragment of ekaterinite. Location: Novofrolovskoye, Sverdlovsk District, Northern Urals, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Ekatite: (Fe+++,Fe++,Zn)12(OH)6[AsO3]6[AsO3,HOSiO3]2
Comments: Divergent spray of dark brown acicular ekatite crystals. Location: Tsumeb mine, Namibia.. Scale: 15 mm Tall. © William Pinch
Elbaite: Na(Li,Al)3Al6(BO3)3Si6O18(OH)4
Comments: Doubly terminated tri-color elbaite (tourmaline) with minor white clevelandite (albite). Location: Himalaya mine, San Diego County, California, USA. Scale: 3 x 1.5 cm. © Fabre Minerals
Comments: Gemmy-blue crystal of elbaite (Indicolite) tourmaline. Location: Morro Redondo Mine in Minas Gerais, Brazil. Scale: Crystal size 8.5 cm. © Kevin Ward
Ellenbergerite: Mg6TiAl6Si8O28(OH)10
Comments: Pale pink glassy nearly pure mass of ellenbergerite. Location: Dora-Meira Massif, Parigi, Piemonte, Italy. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Ellestadite: Ca5(SiO4,PO4,SO4)3(F,OH,Cl)
Comments: Honey yellow hexagonal dipyramids of ellestadite in light blue marble matrix. Location: Crestmore Quarry, Riverside County, California, USA. Scale: 6 x 7.7 cm. © John Veevaert
Ellestadite-(Cl): Ca5(SiO4,PO4,SO4)3(Cl,OH,F)
Comments: Pale yellow rounded crystals of ellestadite-(Cl) (chlorellestadite), in blue marble. Location: Jensen Quarry, Jurupa, Riverside Co., California, USA. Scale: Crystal Length 5 mm. © Jeff Weissman / Photographic Guide to Mineral Species
Ellestadite-(F): Ca5(SiO4,PO4,SO4)3(F,OH,Cl)
Comments: Blue-green granular fluorellestadite in calcium rich rock matrix. Location: Kopeisk, Chelyabinsk District, Southern Urals, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species