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Epidote-(Pb): (Ca,Pb,Sr)2(Al,Fe+++)3(SiO4)(Si2O7)O(OH) Nasonite: Pb6Ca4Si6O21Cl2
Comments: Colorless, transparent hexagonal prism of nasonite on reddish brown hancockite (epidote-(Pb)). Location: Franklin, Sussex County, New Jersey, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Epidote-(Pb): (Ca,Pb,Sr)2(Al,Fe+++)3(SiO4)(Si2O7)O(OH) Clinohedrite: CaZnSiO4·(H2O)
Comments: Clear crystals of clinohedrite on hancockite (epidote-(Pb)). Location: Franklin, Sussex County, New Jersey, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Epidote-(Pb): (Ca,Pb,Sr)2(Al,Fe+++)3(SiO4)(Si2O7)O(OH)
Comments: Reddish brown prisms of hancockite on matrix. Location: Franklin, Sussex County, New Jersey, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Epidote-(Sr): CaSrAl2Fe+++(Si2O7)(SiO4)O(OH) Tinzenite: (Ca,Mn,Fe)3Al2BO3Si4O12(OH)
Comments: B&W image of a radial aggregate of epidote-(Sr) in tinzenite. (Journal of Mineralogical and Petrological Sciences, v103:400). Location: Nagakawara and Hohnomori deposits at the Ananai mine, Kochi Prefecture, Japan. Scale: See Image. © Journal of Mineralogical and Petrological Sciences
Epistilbite: CaAl2Si6O16·5(H2O) Quartz: SiO2
Comments: White epistilbite cluster 25 mm across on amethyst quartz crystal matrix. Location: Sawda, Jalgaon, Maharashtra, India. Scale: 10x8x5 cm. © John Betts - Fine Minerals
Epistolite: (Na,[ ])2{(Na,Ti)4[Nb2(O,H2O)4Si4O14](OH,F)2}·2H2O
Comments: Plate-like crystals of pearly white epistolite to 2.7 cm. Location: Ilimaussaq, Kvanefjeld, Greenland. Scale: 3.5 cm. © John Veevaert
Epsomite: MgSO4·7(H2O)
Comments: Pure white compact fibrous mass of epsomite. Location: Calatayud, Zaragoza, Aragon, Spain. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Ercitite: Na2(H2O)4[Mn+++2(OH)2(PO4)2]
Comments: Back-scattered electron images of ercitite (medium gray) showing lath-shaped habit and cleavages and splintering on mechanical disturbance. W: whitlockite, F: fairfieldite, C: unidentified. (CanMin, v 38, p 896). Location: Tanco pegmatite, southeastern Manitoba, Canada. Scale: Image size 150 µ-m. © Canadian Mineralogist
Erdite: NaFeS2·2(H2O)
Comments: Red-brown columnar crystalline erdite in matrix. Location: Coyote Peak, Humboldt County, California, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Ericaite: (Fe++,Mg,Mn)3B7O13Cl
Comments: Cubic crystal ericaite. Location: Bischofferode, Nordhausen, Erfurt district, Harz Mts, Thuringia, Germany. Scale: Crystal size 3.7 mm. © Thomas Witzke / Abraxas-Verlag