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Georgeite: Cu++5(CO3)3(OH)4·6(H2O)
Comments: Pale blue crusts of georgeite with dark green atacamite. Location: Carr-Boyd Nickel Mine, Western Australia, Australia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Georgiadesite: Pb4(AsO3)Cl4(OH)
Comments: Light blue, pseudo-cubic crystal of georgiadesite. Location: Laurium, Greece. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Gerasimovskite: (Mn,Ca)(Nb,Ti)5O12·9(H2O) (?) Ussingite: Na2AlSi3O8(OH)
Comments: Pale tan gerasimovskite pseudomorphous after epistolite crystal, in purple ussingite. Location: Lovozero Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Gerenite-(Y): (Ca,Na)2(Y,REE)3Si6O18·2(H2O)
Comments: BSE image of eutectoid intergrowth of quartz (black) and gerenite-(Y) (white). (CanMin, v36:793). Location: Strange Lake peralkaline complex, Quebec-Labrador boundary, Canada. Scale: Scale Bar 100 µm. © Canadian Mineralogist
Gerhardtite: Cu2(NO3)(OH)3
Comments: Emerald green crystalline crust of gerhardtite on copper. Location: Greenland, Ontonagon County, Michigan, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Germanite: Cu26Fe4Ge4S32
Comments: Red metallic germanite, tarnishing black. Location: Tsumeb, Oshikoto, Namibia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Gersdorffite: NiAsS
Comments: Massive to coarse-grained lead-gray gersdorffite crystals. Location: Ait Ahmane Mine, Bou Azzer, Anti Atlas Mts., Morocco. Scale: Not Given. © John Veevaert
Gerstleyite: Na2(Sb,As)8S13·2(H2O)
Comments: Small prismatic crystals and massive cinnabar-red gerstleyite on matrix. Location: Baker mine, U.S. Borax Mine, Boron, Kramer District, Kern Co., California, USA. Scale: Picture size 5 mm. © Thomas Witzke / Abraxas-Verlag
Getchellite: AsSbS3
Comments: Bright red getchellite on matrix. Location: Khaidarkan (Chaidarkan) Sb-Hg deposit, Fergana Valley, Osh District, Kyrgyzstan. Scale: Picture size 7 mm. © Thomas Witzke / Abraxas-Verlag
Geversite: Pt(Sb,Bi)2
Comments: Several PGM (mertieite, geversite: white) in a silicate matrix (black) of ferrian chromite (FeCr). (CanMin v40:277). Location: Gabbro-hosted Precambrian Baula Complex, in Orissa, India. Scale: See Image. © Canadian Mineralogist