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Gudmundite: FeSbS
Comments: Steel gray metallic crystalline gudmundite, tarnishing, massive in rock. Location: Pezinock, Zapadoslovensky, Slovakia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Guildite: CuFe+++(SO4)2(OH)·4(H2O) Magnesiocopiapite: MgFe+++4(SO4)6(OH)2·20(H2O)
Comments: Brown granular guildite with greenish yellow magnesiocopiapite. Location: United Verde Mine, Jerome, Yavapai County, Arizona, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Gunningite: (Zn,Mn)SO4·(H2O)
Comments: White crust of gunningite on massive sulfide ore. Location: Brunswick 12 Open Pit, Bathurst, New Brunswick, Canada. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Gustavite: PbAgBi3S6 (?)
Comments: Gray metallic gustavite in matrix. Location: South Mountain, Owyhee County, Idaho, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Gutsevichite: Al3(PO4)2(OH)3·8(H2O)
Comments: White efflorescence of gutsevichite on sandstone. Location: Long Park, Uravan, Montrose County, Colorado, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Haggite: V2O2(OH)3
Comments: Black botryoidal to massive haggite in beige calcite with yellowish tyuyamunite. Location: Section 33 Mine, near Grants, Valencia County, New Mexico, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Haidingerite: Ca(AsO3OH)·(H2O) Pharmacolite: CaHAsO4·2(H2O)
Comments: Translucent colorless crystalline spherical aggregate of haidingerite with white pharmacolite. Location: Jachymov, Zapadocesky, Czech Republic. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hainite: Na4Ca8(Ti,Zr,Mn,Fe)3Si8O28F8
Comments: Brownish-yellow crystal of hainite in pegmatite matrix. Location: Bortolan Quarry, Pocos de Caldos, Minas Gerais, Brazil. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Haiweeite: Ca[(UO2)2Si5O12(OH)2]·3(H2O)
Comments: Minute divergent acicular crystals of white haiweeite on matrix. Location: Coso Uranium Mine, Inyo County, California, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hallimondite: Pb2(UO2)(AsO4)2
Comments: Yellow scaly crusts of hallimondite. Location: Ellweiler, near Richenbach, Rheinland-Pfalz, Germany. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species